• Korean Journal of Plant Taxonomy
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• v.47 no.1
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• pp.46-50
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• 2017

The genus Lilium comprises about 100 species and is a major element of the family Liliaceae in temperate region of North Hemisphere. In the light of recent studies on the genus, we tried to examine the taxonomy of three Korean species (L. hansonii, L. tsingtauense, and L. distichum) belonging to section Martagon. The four available chloroplast regions (rbcL, matK, ndhF, and atpB) in Lilium species were selected and analyzed for a maximum likelihood phylogeny. As a results, three Korean species of section Martagon formed a monophyletic group. However, they nested within paraphyletic section Sinomartagon. Further, the discussions on taxonomic affinities of Korean species have made based on comparison between topology of phylogenetic tree and morphology.

• Fisheries and Aquatic Sciences
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• v.17 no.1
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• pp.137-143
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• 2014

The hairtail (currently recognized as Trichiurus lepturus in Korea) is one of the most important commercial fish species in Korea, Japan, China, and Taiwan. Because the amount of catches has been steadily declining, we must determine the early life stages of the hairtail from the viewpoint of resource management. Furthermore, the taxonomic status of the hairtail is unclear among ichthyologists, potentially creating management difficulties. Therefore, the purpose of this study was to compare morphological and molecular information on eggs, larvae, and adults of hairtail from Korea with that of T. lepturus from the Atlantic Ocean, and to review the taxonomic status of the hairtail. A total of 510 base pairs of the mitochondrial DNA cytochrome oxidase subunit I sequences of 12 eggs, 2 larvae, and 11 adults of the hairtail from the Korean waters clearly matched those of Trichiurus japonicus adults (d = 0.000-0.014) from the East China Sea rather than those of T. lepturus (d = 0.100-0.110) from the Atlantic Ocean. Our results also showed that larvae of the Korean hairtail are different than those in the Atlantic Ocean in having no melanophores along the ventral edge of the lower jaw. Therefore, our findings suggest that the hairtail in the Korean waters may not be T. lepturus, but T. japonicus.

• International Journal of Industrial Entomology and Biomaterials
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• v.33 no.2
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• pp.72-77
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• 2016

The genus Scutellathous Kishii, 1955 is a small group known from Korea, Japan, and Taiwan. We carried out a taxonomic study on the Korean species of Scutellathous for the first time. As the result, S. porrecticollis (Lewis, 1894) is revealed to be commonly distributing in Korea and Japan. Additionally, we found that the previous record of Athous jactatus (Lewis, 1894) from North Korea is misidentification of S. porrecticollis. We herein provide redescription of S. porrecticollis and the result of DNA barcoding of congeners belonging to Scutellathous.

• Journal of Plant Biology
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• v.38 no.2
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• pp.159-164
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• 1995

The taxonomic note was given to the species of Ceramium from Ullungdo Island. Five species, Ceramium aduncum Nakamura, C. codii (Rhichards) G. Mazoyer, C. flaccidum (Harvey exK tzing) Ardissone, C. paniculatum Okamura, and C. tenerrimum (Martense) Okamura were collected during this study. C. aduncum was collected in the intertidal and upper subtidal zones from December to Feburary. They had a narrow internodal space showing 1/3-1/5 times as large as nodal band. C. codii had the spermatangial mother cells developed on abaxial cortical cells of cortical band C. paniculatum collected in summer and winter had a creeping thallus and alternative branching type in gross morphology. The axial cell of C. flaccidum showed 2.3-2.8 L/B ratio, smaller than those of plants from Chejudo Island.

• Journal of Species Research
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• v.11 no.4
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• pp.343-345
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• 2022

The classification system of Collybiopsis has been updated to contain some species of Collybiopsis, Gymnopus sect. Vestipedes, and Marasmiellus. Recently, we conducted the taxonomic study of Korean Collybiopsis to reflect the current classification system and confirmed 16 species. We propose their Korean names in this research note.

• Korean Journal of Plant Taxonomy
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• v.49 no.3
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• pp.261-264
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• 2019

Eupatorium rugosum Houtt. is known to be an alien invasive species and is listed as an ecosystem disturbance species in Korea. There is also an eastern North American species Ageratina altissima (L.) R. M. King & H. Rob. similarly dispersed in Korea. This article aims to clarify the taxonomic confusion regarding the species. The two names refer to the same species originally described as Ageratum altissimum by Linnaeus in his Species Plantarum. Ageratum altissimum was transferred to the genus Eupatorium and later to Ageratina. Eupatorium rugosum is the replacement name in Eupatorium because of E. altissimum L., an existing name based on the different type. When the species was transferred to Ageratina, A. altissima was published based on its basionym, as the epithet "altissima" was available in the genus. It seems that taxonomic confusion regarding the species in Korea is due to the recognition of the names as different taxa. Ageratina altissima is the correct name for the species based on morphological and molecular data.

• Journal of Species Research
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• v.5 no.3
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• pp.264-271
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• 2016

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.

• Animal Systematics, Evolution and Diversity
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• v.32 no.3
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• pp.207-218
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• 2016

A harpacticoid copepod, Microarthridion littorale (Poppe, 1881), is newly recorded in Korea. Microarthridion species can be distinguished from each other by a combination of the number of the antennular segment, the number of the seta on the antennary exopod, and the armature of the thoracopod legs. Korean materials examined coincide well with M. littorale on these well-known characteristics. However, there are some minor differences in the ornamentations of the maxilliped and swimming legs. The specimens show additional sexual dimorphisms in the setae on enp-3 of P1 and exp-3 of P2-P4. Morphological diversity of so-called M. littorale is also discussed here with detailed features.

• ALGAE
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• v.20 no.1
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• pp.15-23
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• 2005

Polysiphonia pacifica is rhodomelaceous red algal species that includes five varieties in Pacific Ocean: P. pacifica var. delicatula, P. pacifica var. distans, P. pacifica var. determinata, P. pacifica var. disticha, and P. pacifica var. gracilis. We here report morphology and phylogeny of P. pacifica to confirm the relationships among previously described varieties as a loan of type specimens from US and to assess phylogenetic relationships of closely related species using plastid protein-coding rbcL gene. Polysiphonia pacifica is distinguished by having creeping filaments attached by unicellular rhizoids not cut off by cross walls, four pericentral cells, ecorticate, trichoblasts rare, ultimate branchlets attenuate at the tip but not pungent, and tetrasporangia in long straight series in the ultimate branchlets. The protein-coding plastid rbcL gene sequence data show that P. pacifica is distinctly different from the superficially similar species, P. morrowii and P. stricta. However, the rbcL sequences of P. pacifica var. pacifica and var. disticha are identical though they have morphological variation.

• Korean journal of applied entomology
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• v.59 no.2
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• pp.129-131
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• 2020

Lissodema plagiatum Lewis is newly recorded and L. laevipennis Marseul is removed from the Korean fauna. A habitus photograph and taxonomic note of the newly recorded species are provided, with a key to Korea species of the family Salpingidae Leach.