• Animal Systematics, Evolution and Diversity
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• 제40권3호
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• pp.157-166
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• 2024

A new oenonid polychaete, Arabella turbidiricolor sp. nov., collected from intertidal zone along the coasts of eastern, western, and southern Korea is described. In Korea, this new species might have been confused with Arabella iricolor(Montagu, 1804), the type species of the genus, in having the following characteristics: ventralmost chaeta tapering gradually to guard, MI left robust and right gracile, MII right long, MV both with one tooth and posterior postchaetal lobe shorter than chaetae. However, A. turbidiricolor sp. nov. is readily distinguished from the latter by the following features: ventral maxillary carriers longer than or equal to dorsal, MI both distally falcate, and pygidium with two swollen pads. We provide detailed descriptions and illustrations for the new species in the present study. Also, morphological characteristics of known Arabella species are compared and discussed with a key to them.

• Animal Systematics, Evolution and Diversity
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• 제10권1호
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• pp.17-37
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• 1994

제주도 연안과 부근섬에서는 다른 무척추동물에 비해 해면동물이 다양하게 분포하고 있으며 많은 미기록종과 신종이 나오고 있다. 본 연구는 1992년 6월부터 1993년 6월까지 제주도 연안과 부근섬에서 채집된 재료와 그동안 한남대학교 샘물학과와 이화여자 대학교 생물학과에 보관되어 있던 표본들을 동정.분류한 결과 21과 29속 40종이 밝혀졌으며, 그 중 3종은 신종이었으며 9종이 한국 미기록종이었다. 여기에서는 3종의 신종에 관하여서는 자세한 기재와 도판을 첨가하였으며 미기록종은 특기와 도판을 첨가하였다.

• Animal Systematics, Evolution and Diversity
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• 제39권4호
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• pp.272-283
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• 2023

The spider fauna of rice fields, marshes, and reclaimed lands was intensively explored in 2015-2022. During the seasonal survey, six Tibellus spiders were collected; two of them, Tibellus fengi Efimik, 1999 and Tibellus japonicus Efimik, 1999, were new to Korean spider fauna and four of them were identified as new species, Tibellus deokjeok sp. nov., Tibellus gimcheon sp. nov., Tibellus sihwa sp. nov., and Tibellus yeongdong sp. nov.. Four new species are similar to each other and known species in the shape of the genital organ and body appearance in both sexes, but can be distinguished from the other Tibellus members by the shape of embolus, conductor, retrolateral tibial apophysis, and ventral tibial apophysis in male and median septum, receptaculum, spermatheca, and copulatory duct in female. The present study taxonomically describes these six Tibellus spiders with diagnoses, measurements, and morphological photos with a key to the Korean Tibellus species.

• ALGAE
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• 제28권3호
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• pp.267-280
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• 2013

The marine algal flora of the Keret Archipelago ($66^{\circ}$ N, $33^{\circ}$ E) in the White Sea, Russia was investigated during 2008. Over 250 algal records from more than 15 islands and several sites on the adjoining mainland produced a total of 62 algal species. This raised the total from 56 to 88 species of Chlorophyta (23 species), Phaeophyceae (31 species), Rhodophyta (33 species), and Tribophyceae (1 species) of which seven were new records or verifications of ambiguous records for the White Sea and 11 species are new for the Keret Archipelago. The new or confirmed records included species of Blidingia, Eugomontia, Prasiola, Rosenvingiella, and Ulothrix (Chlorophyta), Acrochaetium, Colaconema (Rhodophyta), and Vaucheria (Tribophyceae). Five species of flowering plants (Aster, Plantago, Triglochin, and Zostera) were associated with the macrophytic algal vegetation of the region. Five fucoid algae in Pelvetia, Fucus, and Ascophyllum provide a picture of a temperate flora. Regardless, the overall species richness is consistent with an arctic nature to the flora. This discrepancy is attributed to the 'filter' provided by the Barents Sea of the Arctic Ocean for post-glacial colonization of the White Sea.

• Parasites, Hosts and Diseases
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• 제51권1호
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• pp.99-106
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• 2013

In 2005, we reported the infection status of 438 stray cats with various species of intestinal helminths, including nematodes (4 species), trematodes (23 species), and cestodes (5 species) in the Republic of Korea. However, morphologic details of each helminth species have not been provided. In the present study, we intended to describe morphologic details of 13 trematode species which were either new fauna of cats (10 species) or new fauna of not only cats but also all animal hosts (3 species). The worms were fixed in 10% neutral buffered formalin under a cover slip pressure, stained with Semichon's acetocarmine, and then observed using a light microscope equipped with a micrometer. The 13 subjected species included members of the Heterophyidae (Stellantchasmus falcatus, Stictodora fuscata, Stictodora lari, Centrocestus armatus, Procerovum varium, and Cryptocotyle concava), Echinostomatidae (Echinostoma hortense, Echinostoma revolutum, Echinochasmus japonicus, and Stephanoprora sp.), Diplostomidae (Neodiplostomum seoulense), Plagiorchiidae (Plagiorchis muris), and Dicrocoeliidae (Eurytrema pancreaticum). By the present study, Cryptocotyle sp. and Neodiplostomum sp. recored in our previous study were identified as C. concava and N. seoulense, respectively. Three species, P. varium, C. concava, and Stephanoprora sp., are new trematode fauna in Korea.

• 환경생물
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• 제33권3호
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• pp.306-313
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• 2015

Four new species of the genera Masirana Komatsu, 1942 and Longileptoneta n. gen. (Araneae, Leptonetidae) are described from Gyeongsangbuk-do and Chungcheongbuk-do, Korea, under the names Longileptoneta songniensis n. sp., Masirana bonghwaensis n. sp., M. ilweolensis n. sp., and M. flabelli n. sp. A new genus, Longileptoneta n. gen., is also described.

• Animal Systematics, Evolution and Diversity
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• 제16권1호
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• pp.69-77
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• 2000

한국산 애방아벌레아과에 속하는 3신종, Oedostethus koreanus sp. nov., O. ovalatus sp. nov., O. canicapillus sp. nov.을 기재하여 보고한다. 강변 애방아벌레속은 국내에서 처음으로 기록된다.

• Animal Systematics, Evolution and Diversity
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• 제26권1호
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• pp.75-78
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• 2010

A new marine sponge Cinachyrella unjinensis n. sp. has been collected from Jejudo Island in 2009. This new species is similar to C. kuekenthali (Uliczka, 1929) in the shape and composition of the spicules except for style. However, it differs from the latter by size of anatriaenes, protriaenes and microxeas.

• Animal Systematics, Evolution and Diversity
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• 제25권2호
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• pp.189-195
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• 2009

Two new species of the genus Nesodillo Verhoeff, 1926, N. kimi and N. philippinensis, are described from Philippines. For the shape of frontal shield, Nesodillo kimi resembles N. monticola (Vandel, 1973) from New Guinea, but differs from it in the shape of male pleopod 1 exopod. N. philippinensis is distinguished from N. kimi by the shape of frontal shield not depressed in the middle of upper border, and of telson with broadly rounded distal margin.

• ALGAE
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• 제33권4호
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• pp.291-304
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• 2018

Lyngbya C. Agardh ex Gomont is a nonheterocytous cyanobacterial genus whose evolutionary history is still poorly known. The traditionally defined Lyngbya has been demonstrated to be polyphyletic, including at least five distinct clades, some of which have been proposed as new genera. Intraspecific diversity is also clearly underestimated in Lyngbya due to the lack of unique morphological characters to differentiate species. In this study, we describe the new genus Capillus T. A. Caires, C. L. Sant'Anna et J. M. C. Nunes from benthic marine environments, including two new Brazilian species (here described as C. salinus T. A. Caires, C. L. Sant'Anna et J. M. C. Nunes, and C. tropicalis T. A. Caires, C. L. Sant'Anna et J. M. C. Nunes), and two species yet to be described, one of them from India (Capillus sp. 2.1), and the other from United States of America, based on strain PCC 7419. Capillus species presented cross-wise diagonal fragmentation, assisted or not by necridic cells, which has not been previously mentioned for Lyngbya. Ultrastructural analyses showed that C. salinus and C. tropicalis have numerous gas vesicles, which are rarely described for benthic marine species. The new genus formed a well-supported clade, and the D1-D1' and Box B secondary structures of internal transcribed spacer also supported the proposal of its new species. These findings help to clarify the diversity of species in the Lyngbya complex and the taxonomy of the group, and highlight the need of further floristic surveys in tropical coastal environments, which remain poorly studied.