• Title/Summary/Keyword: Biological evolution

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Redescriptions of Two Ampithoid Amphipods, Ampithoe lacertosa and A. tarasovi (Crustacea: Amphipoda), from Korea

  • Shin, Myung-Hwa;Hong, Ji-Sun;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.26 no.3
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    • pp.295-305
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    • 2010
  • Two ampithoid species, Ampithoe lacertosa Bate and A. tarasovi Bulycheva, are redescribed. A. tarasovi has been misidentified as A. lacertosa in Korea. A. tarasovi can be distinguished from A. lacertosa in having the following characteristics: the apical and medial lobes of outer lobe are separated in the lower lip, the carpus of male gnathopod 1 is about 1.4 times as long as the propodus, the palm of male gnathopod 2 has a sloped quadrate hump and a posterodistal tooth, the peduncle of uropod 3 is approximately 2 times as long as the rami, and the length of the carpus is longer than that of the propodus of female gnathopod 1. This study provides detailed descriptions and figures for both species. A. tarasovi is reported for the first time as a member of the Korean fauna.

First Record of Cleantioides planicauda (Crustacea: Isopoda: Holognathidae) from South Korea

  • Song, Ji-Hun;Kim, Min-Seop;Min, Gi-Sik
    • Animal Systematics, Evolution and Diversity
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    • v.30 no.1
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    • pp.26-32
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    • 2014
  • Cleantioides planicauda (Benedict, 1899) has previously been recorded in China and Japan. In the present study, to our knowledge, we report for the first time the occurrence of this species in South Korea. Here, we provide detailed descriptions and illustrations of the diagnostic characteristics of C. planicauda. Further, for the first time, we determined the partial sequence of mitochondrial cytochrome c oxidase subunit 1 (CO1) gene of C. planicauda for molecular characteristic. Additionally, we provide a key to the Korean species and distribution of the genus Cleantioides. As a result of this study, four species of the genus Cleantioides, including C. planicauda, have now been recorded in South Korea.

Four New Species of the Genus Hyattella (Dictyoceratida: Spongiidae) from Korea

  • Sim, Chung Ja;Lee, Kyung Jin
    • Animal Systematics, Evolution and Diversity
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    • v.30 no.1
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    • pp.16-21
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    • 2014
  • Four new species of the genus Hyattella (Dictyoceratida: Spongiidae); H. sinchangensis n. sp., H. mara n. sp., H. chuja n. sp. and H. lendenfeldi n. sp., were collected from Jeollanam-do and Jeju-do, Korea. Hyattella sinchangensis n. sp., H. mara n. sp., H. chuja n. sp. and H. grobosa Lendenfeld, 1889 are very similar to each other in some characters. However, Hyattella sinchangensis n. sp. characterized by no special dermal lamella and no tertiary fibres, and more thin secondary fibres than H. globosa. Hyattella mara n. sp. is differs in having well developed dermal lamella, slightly fasciculated primary fibres, and thick tertiary fibres. Hyattella chuja n. sp. differs in surface characters with a slightly elevated part, skeleton with abundant spongine, and very complex meshes. Hyattella lendenfeldi n. sp. is similar to H. tenella (Lendenfeld, 1889) in skeletal structure, thickness of primary and secondary fibres, but differs in growth form.

First Record of Paranebalia longipes (Crustacea: Phyllocarida: Leptostraca) from South Korea

  • Song, Ji-Hun;Kim, Min-Seop;Min, Gi-Sik
    • Animal Systematics, Evolution and Diversity
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    • v.28 no.4
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    • pp.221-229
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    • 2012
  • Paranebalia longipes (Willemoes-Suhm, 1875) is cosmopolitan and has been usually found in the algal and sponge debris on the sandy mud substrates. This species can be clearly distinguished from other species of Paranebalia by the presence of serration on posterior margin of pleopods, the number of articles on antennule and antenna, and number of teeth on flange of antennule fourth article. The genus Paranebalia is new to Korea. In this paper, we provide detail descriptions of the diagnostic characteristics and illustrations of the P. longipes. Additionally, type locality and world distribution of the genus Paranebalia are provided.

PCR Analysis of Four Length-Polmorphic Loci in Korea Population for Genotyping

  • Ryu, Jae-Song;Koo, Yoon-Mo;So, Jae-Seong
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.5 no.3
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    • pp.169-173
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    • 2000
  • On human chromoscomes, a short sequence of DNA is known to repeat a number of times. These are called variable number of tandem repeat (VNTR) or short tandem respeat (STR) which has a short core. VNTR and STR are used in the filed of forensic science, evolution, and anthropology. In this work, we examined allele frequencies of one VNTR (YNZ22) and three STRs (NeuR, D21S11, Humth01) in a korean population sample by polymerase chain reaction (RCP) followed by high-resolution polyacrylamide gel electro-phoresis (PAGE) with silver stain. Subsequently, the polymorphism information content (PIC) was calculated : the hifhest PIC was observed in the NeuR locus (0.95680) and lowest in the Humth01 locus (0.75809).

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Contribution to Taxonomy and Distribution of the Genus Elaphropoda (Hymenoptera: Apidae: Apinae) in Vietnam

  • Nguyen, Minh Phuong;Tran, Ngat Thi;Nguyen, Dai Dac;Nguyen, Lien Thi Phuong
    • Animal Systematics, Evolution and Diversity
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    • v.32 no.2
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    • pp.118-122
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    • 2016
  • Taxonomic notes on the genus Elaphropoda Lieftinck, 1966 (Hymenoptera: Apidae) from Vietnam are presented. Two species of the genus are reported: Elaphropoda percarinata (Cockerell, 1930) was first recorded from Vietnam based on specimens collected from Ha Tinh province in 1998, and is reconfirmed with a specimens collected from Bac Kan province in the Northeastern part of the country in this study, and Elaphropoda khasiana (Schulz, 1906) is recorded from Vietnam for the first time. Redescriptions of the male of E. percarinata and the female of E. khasiana are given with illustrations.

New Record of Two Marine Ciliates (Ciliophora: Spirotrichea) in South Korea

  • Kim, Kang-San;Jung, Jae-Ho;Min, Gi-Sik
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.2
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    • pp.144-151
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    • 2013
  • Two marine hypotrichous ciliates, Anteholosticha petzi and Ponturostyla enigmatica, were collected from the Yellow Sea and the Korea Strait, respectively, and described using live observation and protargol-impregnated specimens. Furthermore, the nuclear small subunit ribosomal RNA gene of each was sequenced and compared to previously annotated sequences retrieved from the GenBank. Anteholosticha petzi is characterized by 3 frontal cirri (FC), 2 frontoterminal cirri (FTC), 8-12 transverse cirri (TC), 1 buccal cirrus (BC), 9-12 midventral pairs (MP), 3 bipolar dorsal kineties (DK), and 3 types of colorless cortical granules. Ponturostyla enigmatica is characterized by 8 FC, 5 ventral cirri (VC), 5-7 TC, 6-7 marginal rows (MR) on each side, 4 complete and 2-3 partial DK, and greenish cortical granules. This is the first identification and description of these 2 species, A. petzi and P. enigmatica, in South Korea.

First Record of the Genus Elampus (Hymenoptera: Chrysidoidea: Chrysididae) from Korea, with a Key and Checklist of Current Valid Species of Korean Chrysididae

  • Ha, Su-Bong;Lee, Seung-Gil;Kim, Jeong-Kyu
    • Animal Systematics, Evolution and Diversity
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    • v.24 no.1
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    • pp.69-79
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    • 2008
  • Elampus bidens ($F\ddot{o}rster$) is reported from Korea. The genus and species are new to Korea. This species is easily distinguished by a pair of processes on apical margin of metasomal tergum III. A checklist of the 45 current valid Korean species placed in the family Chrysididae is presented. A key to subfamilies, tribes, genera of Korean Chrysididae is also provided.

New Record of a Gonodactylid Species, Gonodactylaceus falcatus (Crustacea: Stomatopoda: Gonodactylidae) from Korea

  • Hwang, Hee-seung;Park, Taeseo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.34 no.2
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    • pp.114-118
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    • 2018
  • A gonodactylid stomatopod, Gonodactylaceus falcatus ($Forsk{\aa}l$, 1775), collected from Jeju Island is reported for the first time in the Korean fauna. The genus Gonodactylaceus, which is also new to Korea, differs from other genera by the presence of a subglobular cornea, five longitudinal dorsal carinae on the telson, and the absence of a movable proximal spine on the propodus of the raptorial claw. Within genus Gonodactylaceus, G. falcatus can be easily distinguished from other congeners by the presence of a bilobed knob on the telson, a rounded anterolateral margin of rostral plate, and a lobe between terminal spines of uropodal protopod. In this paper, detailed descriptions and illustrations of G. falcatus are provided. As a result of this study, seven species of stomatopods including this species are now recorded in the Korean fauna. A key to the species of Korean mantis shrimp is also presented.