Journal of Species Research
The National Institute of Biological Resources (NIBR)
- Quarterly
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- 2234-7909(pISSN)
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- 2713-8615(eISSN)
Domain
- Agriculture, Fishery and Food > Agricultural Infrastructure Engineering
- Earth Science(Earth/Atmosphere/Marine/Astronomy) > Meteorological science
Aim & Scope
The Journal of Species Research (JSR) an open access, international peer-reviewed journal that is published quarterly(February, May, August and November) by the NIBR. The JSR publishes original contributions of all aspects of taxonomy and biological diversity of all kinds of organisms. The subjects covered by this journal include, but are not limited to, topics related to new and unrecorded species, taxonomic review and revision, flora/fauna of the local habitats, and species list in domestic and overseas surveys.
KSCI KCIVolume 5 Issue 3
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Hur, Wee-Haeng;Park, Chan-Ho;Min, Gi-Sik;Hyun, Chang-Woo;Bae, Eun Hee;Lee, Jeong Hyun;Jung, Eun-Hee;Yoo, Jung-Sun;Suh, Min Hwan 261
In 2012, the NIBR started publishing the Journal of Species Research (JSR) as an international specialized journal of biological taxonomy focusing on taxonomic research. JSR Volume 5 Number 3, to be published in October 2016, has been planned as a 'Special Edition on New and Unrecorded Species of Invertebrates in Korea', and so it consists of the reports of 149 new and unrecorded invertebrate species (including protozoa) discovered in Korea. In future, the JSR should further accelerate the use of such methods to generate valid data for new species and effectively support the compilation of 'National List of Species of Korea'. In this way, it will contribute significantly to enrich for biodiversity in Korea. -
A capitellid species, Heteromastus filiformis (
$Clapar\grave{e}de$ , 1864) is newly reported from Korean waters with the description and illustrations. Korean materials of the present study show several characteristics generally agreed well with the previous descriptions of H. filiformis as follows: the thorax is composed of the first achaetigerous peristomium and following 11 thoracic chaetigers; the capillary chaetae are present on the thoracic chaetigers 1-5 and narrowly bilimbate; the thoracic hooded hooks are appeared on the chaetigers 6-11 and have indistinct nodes on the shaft and several teeth above the main fang; the abdominal hooded hooks possess distinct nodes on the shaft and a few teeth above the main fang; the branchiae appearing on the posterior abdominal segments are the broadly-based and rounded lamellae projecting posteriorly. The authors reviewed the taxonomy of Heteromastus with a comparison of morphological characteristics among worldwide species, and provided a key of them. -
Jung, Tae Won;Soh, Ho-Young;Yoon, Seong Myeong 272
The first record of Korean cyproideid amphipod, Cyproidea liodactyla Hirayama, 1978 is reported here with description and illustrations. This species has the following characteristics: the presence of dorsal keel of peduncle 2 on antenna 1, posterodistal process of ischium on gnathopod 1 and carpal process on gnathopod 2. In this study, the minor differences between the original description and our Korean specimens of Cyproidea liodactyla are discussed and a brief comparison to other related species such as C. serratipalma Schellenbeg, 1938 and C. robusta Ren, 2006 are suggested. In addition, a key to Korean species belonging to the family Cyproideidae is provided. -
Aquatic oligochaete plays an important role in freshwater ecosystem. These worms, therefore, have already been extensively studied around the world. But compared to other countries with East Asia, only 48 species of aquatic oligochaetes have been recorded in Korea. This is because taxonomic study of aquatic oligochaete is in just beginning stages. Our specimens of this study had been collected from eighteen locations in Korean peninsula. Analyzing them we identified twenty unrecorded species including one species of aelosomatid: Paranais orientalis, Pristina breviseta, P. notopora, P. foreli, P. synclites, Bratislavia prosetosa, Allonais gwaliorensis, Aulodrilus pluriseta, Limnodrilus neotropicus, L. maumeensis, L. amblysetus, Tubifex ignotus, Potamothrix cf. bedoti, P. bavaricus, Peipsidrilus cf. pusillus, Psammoryctides albicola, Varichaetadrilus vestibulatus, Tasserkidrilus cf. acapillatus, Propappus volki, Aeolosoma japonicum.
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Extensive survey of invertebrates in Korea, led by the National Institute of Biological Resources in Incheon, continues to uncover many new and endemic species, but also elements of neighbouring faunas that were previously unknown here. Hemicyclops tanakai Itoh and Nishida, 2002 was originally described from estuarine mud-flats in Tokyo Bay, Japan. We report one male and two females from a sandy beach on Jeju Island, which represent its first record in Korea and second record ever. No morphological differences were observed between these two disjunct populations, so we expect more records of this species in Korea and Japan. Tisbe ensifer Fischer, 1860 was originally described from Madeira and later on reported from numerous other parts of the Northern Atlantic, as well as from the Indian Ocean. We report two females from a shallow littoral in Sokcho, which represents its first record in Korea and the first record in the entire Pacific Ocean. Because of morphological discrepancies reported in previous records we recognize that this species might be in reality a species complex, and we only tentatively identify our Korean specimens as T. cf. ensifer. We provide numerous light photographs of both species in addition to short descriptions, in hope that they might elucidate global problems of their zoogeography and dispersal of small marine invertebrates in general. Further samplings from Korea and other parts of the world will be necessary to test our identifications and phylogenetic relationships of Korean populations with molecular and other tools.
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Keum, Eunsun;Kaczmarek, Slawomir;Jung, Chuleui 300
Korean fauna mites in the family Parasitidae of Mesostigmata were reported as 6 genera, 22 species. Among those 20 species were recorded from Northern part of Korea by Athias-Henriot (1977; 1980), Daele (1975) and Tichomirov (1977), but two from Southern part of Korea by Choi (1994) and Korean zoological record (KSSZ, 1997). During the faunal study of soil predatory mites of diverse habitats in South Korea, four species of P. beta, P. fimetorum, P. insignis and Poecilochirus carabi are the new records to Korean peninsula. Taxonomic details and other biological characteristics are reported. -
Cleantioides rotundata (Kussakin, 1982) is reported for the first time in South Korea. Specimens of C. rotundata were collected with a small hand net from the intertidal zone of Opo-ri, Yeongdeok-gun in South Korea. This species makes tubes using seagrass debris at our sampling location and distinguished by the following characteristics: pleotelson long, length almost 1.6 times as long as width; dorsum of distal one third with deeply bilobed depression on plane. In this paper, we provide descriptions of diagnostic characteristics and illustrations of morphology of C. rotundata. Additionally, a key to the Korean species of the genus Cleantioides is provided and the partial sequences of the mitochondrial cytochrome c oxidase subunit 1 (CO1) are provided as molecular characteristics.
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Two marine isopods, Elaphognathia sugashimaensis (Nunomura, 1981) and Metacirolana shijikiensis Nunomura, 2008, have been reported for the first time in South Korea. Specimens of E. sugashimaensis and M. shijikiensis were collected using light traps from Yeongdeok-gun and Gageo-do Island in South Korea, respectively. The genera Elaphognathia Monod, 1926 and Metacirolana Kussakin, 1979 are new to South Korea. In this paper, we provide descriptions of diagnostic characteristics and illustrations of their morphologies. Additionally, the partial sequences of mitochondrial cytochrome c oxidase subunit 1 (CO1) of two species are provided as molecular characteristics.
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Eun, Geun;Ha, Jihye;Kang, Heonil;Kim, Yongchul;Choi, Insoo;Kim, Donggeun 318
Acrobeles ciliatus (von Linstow, 1877) and Plectus parietinus (Bastian, 1865) are newly collected from Korea. Acrobeles is similar to those nematode belongs to Rhabditidae and Panagrolaimidae by having terminal bulb without medium bulb but different by having complex, vines shaped labial attachment. A. ciliatus differed from other Acrobeles species by lateral fields with two incisures, primary axils U-shaped, and secondary axils V-shaped. Head region set off with the neck, three high labial probolae present, each having 5 tines at inner margins and 5-7 at outer margins, and two elongate apical tines. Also, it differs from the longer female body. Plectus parietinus is distinguished from all other species of Plectus by the prominent hypodermal glands, the relatively small amphid, the distinct and well set-off lips and by the subdorsal distal caudal seta on the left side of the tail. Stoma without stylet. Oesophagus about 1/4 of total body length with terminal bulb. Anus ca.$100{\mu}m$ from posterior extremity. Vulva is at middle of body. Have spinneret on tail tip. -
Two feather mites, Zachvatkinia larica Mironov, 1989 and Ardeacarus ardeae (Canestrini, 1878) are reported for the first time in Korea. Specimens of Z. larica and A. ardeae were collected from the blacktailed gull Larus crassirostris and little egret Egretta garzetta, respectively. The genera Zachvatkinia Dubinin, 1949 and Ardeacarus Dubinin, 1951 are new to this country. Here, we provided morphological descriptions and illustrations of these two species. Additionally, we provide the partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) as DNA barcode markers.
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Based on the taxonomic survey to uncover the ciliate diversity in the eastern Kangwon-province, twenty-six species were identified from moss-covered soils and assigned to 5 classes, 9 orders, 12 families, and 15 genera. Of these, fifteen species are first records from Korea, and brief remarks with photographs were provided.
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Two pleurostomatid ciliates, Amphileptus litonotiformis Song, 1991 and Kentrophyllum setigerum (Quennerstedt, 1867), were collected from the coastal waters of Korea. Their morphologies are described based on live observation and protargol impregnation, and their diagnoses and morphometrics are provided. Additionally, sequence information of small subunit ribosomal RNA obtained from two species were reported.
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An asteroid specimen was collected from Jumunjin, Gangwon-do in the East Sea, Korea at a depth of 50 m using fishing nets on 26 May 2013. It was identified as Pteraster militaris (O.F.
$M{\ddot{u}ller$ , 1776) belonging to the family Pterasteridae of the order Velatida based on morphological characteristics. This species is usually distributed in the cold boreal zone around northern Pacific and Atlantic, and is distinctly distinguished from P. tesselatus which was reported in Korean fauna: body form, length ratio of arm to disc and surface of dorsal membrane. -
Some asteroid specimens of genus Henricia were collected at a depth of 50-90 m near waters of Moseulpo, Jeju Island, Korea using fishing nets on September 2015. The specimens were identified as Henricia elachys Clark and Jewett, 2010 belonging to the family Echinasteridae of order Spinulosida. This small species can be distinguished from other Henricia species by short arms, moderately inflated arm base, and slightly broad disk. The morphological characteristics of this species were described with illustrations. Up to date, there are nine species of genus Henricia reported in Korean fauna.
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A spionid polychaete, Scolelepis (Scolelepis) kudenovi Hartmann-Schroder, 1981, is newly reported from Korean waters with description and illustration. Scolelepis (Scolelepis) kudenovi is characterized by a combination of the following morphological features: the notopodial setae are present on the setiger 1; the occipital tentacle is absent; the branchiae are partially fused to the notopodial postsetal lamellae; the notopodial and neuropodial hooded hooks are bidentate only; the notopodial hooded hooks are present on the posterior setigers. A key to Scolelepis species from Korean waters is provided in this paper.
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Two species of parthenopid crabs, Enoplolambrus laciniatus (De Haan, 1839) and Pseudolambrus lobatus (Flipse, 1930), are recorded for the first time from Korean waters. Enoplolambrus laciniatus is similar to E. validus as the only known Korean species of the genus Enoplolambrus, however, it is characterized by having carinated ambulatory legs without teeth on the outer margins of carpi. Pseudolambrus lobatus is the first recorded species of the genus Pseudolambrus from Korean waters, characterized by having a rounded front, short chelipeds, and a carapace with produced angles posterolaterally. The morphologies of these two species are described and illustrated with color photographs herein.
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Kim, Jiwon;Bayartogtokh, Badamdorj;Jung, Chuleui 364
The genus Peloribates is comparatively species rich and distributed worldwide. More than 90 species have been assigned to this genus, but three species were reported in Korea. We recovered a new species, Peloribates barbatus Aoki, 1977 to Korean inventory in the family Haplozetidae (Acari: Oribatida) from the straw mat covering the cherry trees. This species was originally reported as inhabiting in lichens growing on tombstones in Japan. In this paper, we present a comparative account of morphological description of the species with other three congeneric species in Korea. -
Kim, Jiwon;Bayartogtokh, Badamdorj;Jung, Chuleui 368
From the soil biodiversity study, we found a species, Phauloppia lucorum (C.L. Koch, 1841) in the family of Oribatulidae (Acari: Oribatida) from the straw mat covering the cherry trees during winter in 2011. This species inhabiting litter and soil of forest, moss and lichens on tree and stones is distributed in the eastern Asia and western and central parts of Europe. In this paper, we illustrate the diagnostic features of a new species with detailed diagrammatic representations and its geographical distribution. -
Candacia bispinosa (Claus, 1863) was collected from the East China Sea and reported for the first time in Korean fauna. Male of Candacia bispinosa is distinguishable from the other species by having the
$18^{th}$ segment swollen on the right antennule. -
Keum, Eunsun;Kaczmarek, Sławomir;Jung, Chuleui 375
Mites of the genus Antennoseius of family Ascidae are free-living soil predator mostly observed on the open grass field. In Korea, only two species, Antennoseius imbricatus Ishikawa, 1969 and A. japonicus Ishikawa, 1979 were reported in 1990s. Recent series of soil acarine biodiversity survey in Gyeongbuk province during 2009-2015. We recovered a new record of Antennoseius avius (Karg, 1976) to Korean inventory from riparian grassland. Detailed description of the species as well as the identification key to the genus and species were provided. -
Two marine amoebae Vannella bursella (Page, 1974) Smirnov et al., 2007 and Pseudoparamoeba sp. were encountered from marine coastal waters of Masan Bay and Garorim Bay (Korea), respectively. These species are described with uninterpreted records based on light-microscopy of living cells and reported taxonomically for the first time from Korea. Diagnostics of these species are as follows. Vannella bursella: size in vivo,
$17-29{\mu}m$ long with flattened ovoid, semicircular locomotive forms. Pseudoparamoeba sp.: size in vivo,$10-15{\mu}m$ long with elongated locomotive forms, producing a few short conical pseudopodia from anterior hyaline zone. -
A new species of Tanaidacea is described from the eastern coast of Korea, under the name of Apseudomorpha magna in the family Metapseudidae. The new species can be distinguished from its congeners by the following combination of characters: pleonites 2 and 5 and pleotelson have a large lateral seta; pleopods are biramous, in five pairs, each bearing a two-segmented exopod and a single-segmented endopod; the maxillular palp is two-segmented, with five setae on its distal segment; the pleotelson has a large seta on each anterolateral process; and the mandibular palp has 2, 7, and 13 setae on the first to third segments, respectively.
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Siphonostomatoid copepods (Crustacea) mainly associated with marine invertebrates from Korean watersTwelve species of siphonostomatoid copepods mainly associated with marine invertebrates are recorded from Korean waters. Nine species are new to science: Arctopontius minutus n. sp., A. adelphus n. sp, and Dyspontius alatus n. sp. in the family Artotrogidae; Asterocheres horridus n. sp., A. cuspis n. sp., A. quadridens n. sp., Scottocheres mipoensis n. sp., Asteropontoides acutirostris n. sp. and Callomyzon macrocephalus n. gen. n. sp. in the family Asterocheridae. The new genus Callomyzon is distinguished from other genera in the family by having six setae on the third endopodal segment of leg 3, four spines and three setae on the third exopodal segment of leg 4 and three setae on the third endopodal segment of leg 4. Three new records of Korea, Asterocheres lilljeborgi Boeck, 1859 and A. simulans (T. Scott, 1898) in the Asterocheridae, and Parartotrogus arcticus T. and A. Scott, 1901 in the Cancerillidae are redescribed as the circum-Arctic species.
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Ten new species of genus Sarcotragus (Demospongiae: Dictyoceratida: Irciniidae) are described from Geomundo Island and Jejudo Island, Korea. All new species of the Sarcotragus are distinguished from the other reported species of Sarcotragus by the skeletal structure, especially fasciculate primary fibres. The characters of genus Sarcotragus have cylindrical primary fascicles filled with wads of filaments or flattened fascicles. All of the primary fibres are not cored with foreign debris. Secondary fibres have slightly fasciculate branch or plastic-like web. They are all not cored with foreign debris. All skeletal fibres are very irregular. The surface is covered with loose or tight filamentous membrane.
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The branchiobdellidan species Holtodrilus truncatus (Liang, 1963) is reported for the first time in Korea. The genus Holtodrilus Gelder and Brinkhurst, 1990 is monotypic within the family Xironodrilidae, and the genus and family of this species are also new to the Korean fauna. The branchiobdellidan specimens were collected from the exoskeletons of the freshwater atyid shrimp, Neocaridina sp., sampled from the 'Andeok Valley', Jeju-do Province, South Korea. Holtodrilus truncatus is characterized by its terete body form, 7/7 dental formula (with a large medial tooth and three pairs of smaller lateral teeth), and no trunk appendages. In addition, we determined a partial sequence of the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene as a DNA barcode marker for H. truncatus. The present study is the first record of the branchiobdellidan occurrence on a non-crayfish host (shrimp) in Korea. To date, seven species (four genera in three families) of branchiobdellidans have been reported in the Korean fauna.
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We collected two unrecorded Colpoda species - C. cucullus
$M\ddot{u}ller$ , 1773 and C. inflata (Stokes, 1885) Kahl, 1931 from Jeju-do Province (Sarabong Park,$33^{\circ}31^{\prime}N$ $126^{\circ}32^{\prime}E$ ) in November, 2014. We described these species based on observations of live and impregnated (protargol and silver nitrate impregnation) specimens. -
Kim, Kang-San;Park, Kyung-Min;Jung, Jae-Ho;Min, Gi-Sik 468
We firstly report three stichotrichs, Metaurostylopsis cheni Chen, Huang & Song, 2010, Gonostomum strenuum (Engelmann, 1862) Sterki, 1878, and Lamtostyla granulifera Foissner, 1997, collected in South Korea. We investigated these ciliates based on observations of live and protargol-impregnated specimens. -
Keum, Eunsun;Kaczmarek, Slawomir;Jung, Chuleui 477
Mite of the genus Hypoaspis of family Laelapidae are free-living soil predators mostly observed on the open grass field. Five species in the genus Hypoaspis were listed in Korean Catalog (NIBR, 2013) without detail information. Recent series of soil acarine biodiversity survey in Gyeongbuk and Gangwon provinces during 2009-2015 recovered a new record of Hypoaspis sardous (Canestrini, 1884) to Korean inventory from apple orchard and riparian grass land. Detailed description and morphological comparison with the related species, H. aculeifer which is well known biological control agent of horticultural crop pests were provided with identification keys. -
Nine new species of genus Ircinia (Demospongiae: Dictyoceratida: Irciniidae) from Jejudo Island, Korea are described. All of the new species are distinguished from the others reported species of Ircinia by the skeletal structure, especially massive fasciculate primary fibres. The characters of genus Ircinia have primary fibres cored with foreign debris and no cored secondary fibres. Primary fibres are not easy to distinguish from secondary fibres if they are not cored. Secondary web has perforated plate or meshed net. All new species have loosely arranged skeletal fibres network.
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Four new Korean records of the gammarid (Crustacea, Amphipoda), Grandidierella fasciata Ariyama, 1996; Moolapheonoides acutifalcatus Kobayashi and Ishimaru, 2005; Guernea terelamina Hirayama, 1985; and Gordonodius zelleri (Berge, Vader and Coleman, 1999) were reported from the Korean indigenous species survey project funded by the National Institute of Biological Resources (2014-2015). Each of these species is well accorded with the original description for the species except for some minor morphological differences. The genera Moolapheonoides Barnard, 1974 and Gordonodius Ariyama, 2011 are reported for the first time from Korea.
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Two unrecorded marine nematode species, belonging to genus Paracanthonchus Micoletzky, 1924, are described on the basis of the specimens collected from rocky intertidal seagrass bed on the eastern coast of Korea. Paracanthonchus macrodon (Ditlevsen, 1918) is characterized by presence of cuticular differentiation, strongly dilated gubernaculum with numerous cusps, three post-cloacal setae, and arrangement of six (4+2) precloacal supplement. Paracanthonchus kamui Kito, 1981 is distinguished from other species of the genus by having the 4.25 turns amphideal fovea, six tubular supplement, rib-shaped gubernaculums with proximally hook-shaped and distally broaden. In this study, we provide taxonomic description and illustration of two unrecorded species of the genus Paracanthonchus by differential interference contrast microscopy. This is the first report on the species of the genus Paracanthonchus from Korea.
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Three marine and one brackish-water ciliates (Dysteria crassipes
$Clapar\grave{e}de$ and Lachmann, 1859; Gruberia calkinsi$Beltr\acute{a}n$ , 1933; Pleuronema salmastra Dragesco, 1986; Zosterodasys agamaliev Deroux, 1978) were isolated from Incheon in Korea and their morphologies were investigated using live observation and protargol impregnation. -
Two scale worms of the family Polynoidae, Arctonoe vittata (Grube, 1855) and Hyperhalosydna striata (Kingberg, 1856) were found for the first time from Korea by SCUBA diving survey. The two species are free-living organisms or associated commensally with a wide variety of other invertebrates. Specimens of A. vittata were collected from the East Sea and were closely associated with asteroids, holothuroids, gastropods and nudibranchs species. Specimens of H. striata were collected from Jeju-do Island, and of these, one specimen was collected in a tube of eunicid species. The two species can be easily distinguished from their congeners by distinct morphological characteristics as follows: (1) A. vittata has pigmented band near segment eight and two kinds of neurochaetae; (2) H. striata has reddish-brown longitudinal striped elytra. The morphological key characteristics of both species agreed well with their original descriptions and redescriptions. In this study, the descriptions, detailed illustrations and ecological photographs of two species based on Korean materials were provided.
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A single specimen in the subfamily Coralliophilinae in Family Muricidae was collected from Jeju-do by SCUBA diving survey. It was identified as Hirtomurex nakamurai Kosuge, 1985 based on external morphological characteristics. The Coralliophilinae species, commonly known as coral snails, are broadly distributed in tropical and temperate oceans from shallow subtidal zones up to 1,000 m in depth. To date, only four Coralliophila species in the subfamily Coralliophilinae have been reported from Korean waters. Prior to this report, Hirtomurex species has not been reported from Korean waters yet. As a result of this study, a total of five species in two genera of subfamily Coralliophilinae are recorded as Korean mollusk fauna.
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Shin, Myung-Hwa;Wongkamhaeng, Koraon;Kim, Won 533
During a survey of sand-burrowing amphipods, a phoxocephalid species, Parametaphoxus asiaensis (Hirayama, 1992), was found on the tidal flat of Yellow Sea and Jeju Island, Korea. The genus Parametaphoxus is reported for the first time in the Korean fauna. In this paper, we describe and illustrate the species, P. asiaensis of the family Phoxocephalidae in detail. -
Microturbellarians, small free-living Platyhelminthes are rich in freshwater environments. They are useful as indicator of water quality. There has never been a record of microturbellarians in Korea. Here I report a microturbellarian species, Catenula confusa Nuttycombe, 1956. Although specimens in this study show some differences with those of the original description of C. confusa in length and width of zooid, they conform to the specific diagnosis of this species.
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Enchytraeidae is one of the largest groups in Clitellata. They are commonly found in soil and aquatic environments and play important roles in these ecosystems. It is not easy to study enchytraeid clitellates because of difficulty in distinguishing morphologies between closely related species. In Korea, 29 species have been reported in this family. Of these, 27 species are terrestrial and only two species are aquatic. Here, we report three aquatic enchytraeid species new to Korea: Fridericia glandifera Friend, 1913, Henlea montana Rota, 1994 and Marionina brendae Bretscher, 1899.
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Kang, Heonil;Eun, Geun;Ha, Jihye;Kim, Yongchul;Choi, Insoo;Kim, Donggeun 547
Hemicycliophora litoralis is newly collected from Korea. Korean population is well matched and within a range of original description and additional record from Solomon island in de Man's of L, b, c, V, R, Rex, Ran, Roes, RV (ant), annule, excretory pore, stylet length, and tail length. Differences are observed in RV and RVan. RV and RVan of original description was 55 (48-69) and 14 (10-19) but Korean population is 68 (61-76) and 22 (19-24), respectively. H. litoralis described from Solomon island has RVan of 19.6 (17-23) and is similar to Korean population. H. litoralis from Solomon island has slight higher Rst value of 39 (35-59) compared to Korean population of 33.5 (29-38). The measurements of MB (%), s, G1, G2 values are newly given. -
This study aims to clarify the diversity of bryozoans which were collected from Seogwipo waters in Jeju Island, Korea. A total of 78 species has been reported from Seogwipo waters so far. In the present study, 63 species were found from nine sites of Seogwipo waters from 2008 to 2012, including six newly added species to the Korean bryozoan fauna and twelve species new to Seogwipo waters. As a result of this study, the bryozoans from Seogwipo waters were turned out to be 96 species, 64 genera, 42 families, three orders and two classes.
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Three cheilostomatous bryozoan species collected from Gageodo Island of Korea in 1999, which are Chorizopora brongniartii (Audouin, 1826), Microporella marsupiata (Busk, 1860) and Celleporina costazii (Audouin, 1826), are newly added to the Korean fauna. The redescriptions of three species are provided with distributional data and detailed illustrations herein. As a result of this study, a total of 32 bryozoan species from Gageodo Island waters are now reported.
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Seven new species of the genus Cybaeus are described; C. geumensis, C. ilweolensis, C. jiriensis, C. jogyensis, C. odaensis, C. seorakensis, and C. songniensis. Detailed descriptions and illustrations of these new species are provided.
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Four new species of the genus Longileptoneta from Korea, L. gachangensis, L. gayaensis, L. jangseongensis, and L. weolakensis, are described and illustrated.
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Four new species of the genus Falcileptoneta from Korea, F. geumdaensis, F. geumsanensis, F. maewhaensis, and F. sunchangensis, are described and illustrated.
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Two new species of litter-inhabiting leptonetid spiders in mountainous region from Korea are described: Leptoneta chilbosanensis sp. nov. from Mt. Chilbosan, Gyeonggi-do, and Leptoneta naejangsanensis sp. nov. from Mt. Naejangsan, Jeollabuk-do from Korea.
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Neon ningyo Ikeda, 1995 and Sibianor nigriculus (Logunov and Wesolowska, 1992) of Salticidae are described from Korea with taxonomic illustrations.