• Animal cells and systems
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• 제14권1호
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• pp.59-71
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• 2010

Gammarus gageoensis n. sp., a new species of freshwater gammarid, was collected from Gageodo Island, South Korea. This new species is characterized in terms of its morphology by the flagellum of antenna 2 with calceoli, the pereopods 3 and 4 with numerous long curled setae on the posterior margins, the terminal article of the outer ramus in uropod 3, which is longer than the adjacent spines, and the presence of both rami with long simple setae. The morphological characters of the new species that are different to related species are presented in the text. This paper also compares the new species to related species by the partial sequence of the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene. The sequence difference, consisting of a 39-44% difference relative to closely related species, is also large enough to designate this gammarid as a different species from other freshwater gammarid species. This is the first finding of a new species of Korean freshwater gammarid since 1992. Including this new species, a total of 10 species are known to Korea.

• Journal of Species Research
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• 제5권1호
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• pp.31-48
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• 2016

Twelve new species of two genera Smenospongia and Cacospongia (Demospongia: Dictyoceratida: Thorectidae) are described from Gageodo Island and Ulleungdo Island, Korea. Of these, ten new species of the Smenospongia are distinguished from the other nine reported species of the genus by the skeletal structure and sponge colour. Primary fibres of the genus Smenospongia are mostly dense, dark colour, and invisible inside of fibres, but they are mostly cored detritus and echinated with spicules. Especially, the end of primary fibres at the surface shows densely cored with spicules. All these new species changed the colour. Two new species of the genus Cacospongia are compared with nine other reported species. In skeletal structure, primary fibres of the genus Cacospongia are light colour, visible inside and more heavily cored with spicules and sands. The skeleton of this genus has large meshes. The colour of the genus Cacospongia does not change.

• Journal of Species Research
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• 제12권4호
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• pp.321-325
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• 2023

A new species, Monoblastus forsythia sp. nov. is described from South Korea. All specimens of this new species were collected on Forsythia koreana (Nakai). A taxonomic study of South Korean Monoblastus was initiated by Uchida in 1930, and until now four species have been recorded from South Korea. The genus Monoblastus is a Holarctic genus with 31 described species, 14 species are Nearctic, seven are Western Palaearctic region, and nine species occur in Eastern Palaearctic region. In the study, I provide description and photos of both sexes of this new species. Also, modified key to species of the South Korean Monoblastus is provided.

• Animal cells and systems
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• 제14권3호
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• pp.207-212
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• 2010

The characteristics of insect communities in specific localities reflect climatic and environmental status and change. We investigated the description pattern of new insect species by reviewing announcements of new or newly recorded insects in Korea published in five systematic journals between 1999 and 2009: Entomological Research (1999-2009), Insect Koreana (1999-2003), Journal of Asia-Pacific Entomology (1999-2009), Korean Journal of Applied Entomology (1999-2009), and Korean Journal of Systematic Zoology (1999-2009). A total of 757 new species were reported in 299 research papers. More than 85% of the newly described or reported species belonged to four orders: Coleoptera (225 species), Lepidoptera (202 species), Hymenoptera (141 species), and Diptera (82 species). The number of new species fluctuated from year to year, and a few major authors described most species. The graph of the cumulative number of species described in Korea was not asymptotic. We also examined the decadal trends in the proportion of species according to their biogeographical origin. The numbers of northern (Palearctic and Nearctic) and southern (Oriental) species recorded in Korea between 1999 and 2009 were increasing mainly due to the recent taxonomic research environment. It is also possible that recent climatic change induces new migrants toKorea from more southern parts of Oriental region, but more information is needed to confirm this hypothesis.

• Animal cells and systems
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• 제13권1호
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• pp.79-82
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• 2009

A new species of bryozoan, Bicellariella fragilis n. sp. is reported from Jejudo Island, Korea. It was collected at Munseom I. and Supseom I. off Seogwipo city by the fishing net and SCUBA diving from 1978 to 2009. The new species has characteristics of four to five dorso-distal spines and two proximal spines, whereas ten to twelve spines of B. sinica are not separated into two groups of the distal and proximal ones. And this species shows the difference from B. levinseni in having no avicularium.

• Animal Systematics, Evolution and Diversity
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• 제25권3호
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• pp.295-300
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• 2009

We describe three new species of the Genus Kleidotoma (Figitidae: Eucoilinae) from Korea. They are K. convexitas n. sp., K. debilifovea n. sp. and K. longirudis n. sp. A key to all Korean Kleidotoma species including three new species herein are given. Descriptions and illustrations of diagnostic characters of three new species are also provided.

• 한국자원식물학회지
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• 제25권3호
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• pp.346-348
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• 2012

A new species of Chrysosplenium (Saxifragaceae), C. epigealum J.W.Han & S.H.Kang is described from Mt. Seoraksan, Inje-gun, Gangwon-do, Korea. This new species is distinct from C. flaviflorum Ohwi, its closely relative species, in having calyx 2-2.5 mm long, pistils slightly shorter than calyx, filaments 2-3 times longer than anthers and stolons epigeal.

• Journal of Species Research
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• 제6권2호
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• pp.190-194
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• 2017

Two new species of the genus Luffariella (Dictyoceratida: Thorectidae), L. tubula n. sp. and L. koreana n. sp. were collected from Jeju-do, Korea. These species differ significantly from the previously reported five species in terms of shape and skeletal structure. L. tubula n. sp. has two categories in thickness of secondary fibres which were different from other species. L. koreana n. sp. is very similar to L. variabilis from Tahiti in skeletal structure, but differs in sponge shape with irregular branching and indistinct surface conules. Primary fibres of the two new species are separated from secondary and tertiary fibres.

• Animal cells and systems
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• 제14권1호
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• pp.53-58
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• 2010

From an examination of caprellid specimens collected from Korea, we found a new species belonging to the genus Perotripus. This new species is clearly distinguished from two previously recorded species, P. brevis and P. keablei, in having an acute projection and blunt apex of distal segment of pereopod 5. This genus Perotripus is reported from Korea for the first time. We described it with figures in detail. As a result, Korean caprellid fauna consists of 35 species in seven genera.

• Animal cells and systems
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• 제10권2호
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• pp.93-101
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• 2006

A new species of leuconid cumaceans, Nippoleucon projectus n. sp. is described on the basis of the specimens collected from western shallow coast of the South Korea. This new species is easily distinguished from two previously recorded species (N. hinumensis and N. enoshimensis) in having the fifth abdominal segment prominently projected to rear at dorsal posterior portion and the carapace of the female with three spines on the frontal lobe.