• Journal of Species Research
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• 제5권3호
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• pp.355-358
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• 2016

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.

• Animal Systematics, Evolution and Diversity
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• 제38권3호
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• pp.122-129
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• 2022

Scolelepis (Scolelepis) lingulata is newly reported in Korean waters. This species, collected from the intertidal zone of the Yellow Sea, is in good agreement with the original and subsequent descriptions in presence of occipital antenna, conspicuously large and lingulate interramal lobes in posterior chaetigers, absence of hooded hooks in notopodia, and unidentate hooded hooks present in neuropodia. Additionally, Korean specimens previously identified as Scolelepis(Scolelepis) kudenovi are reexamined based on the morphology. As a result, these specimens were identified as Scolelepis (Scolelepis) daphoinos in terms of the presence of reddish-brown pigmentation along the transverse ciliated bands on the dorsum. The identification key to Scolelepis species from Korean waters is provided.

• Animal Systematics, Evolution and Diversity
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• 제34권3호
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• pp.152-158
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• 2018

Two new records of spionid polychaetes, Prionospio pulchra Imajima, 1990 and Scolelepis (Scolelepis) sagittaria Imajima, 1992, collected from Korean waters are reported here with detailed descriptions and illustrations. Prionospio pulchra can be distinguished from its relatives by remarkably long and apinnate branchiae, the first chaetiger with notopodial chaetae, and the presence of ventral sabre chaetae. Scolelepis (Scolelepis) sagittaria is characterized by a sagittate prostomium, an occipital tentacle, and bi- or tridentate hooded hooks. In this paper, photographs of scanning electron microscopy for characteristic features of each species are presented. Keys to Prionospio and Scolelepis species from Korean waters are also provided.

• Animal Systematics, Evolution and Diversity
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• 제37권3호
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• pp.229-234
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• 2021

Scolelepis (Scolelepis) daphoinos is newly reported in Korean fauna. This species can be distinguished from its congeners by the following characteristics: the presence of reddish pigment patches on the posterior part of the prostomium, notopodial postchaetal lamellae that are partially fused to the branchiae, and the presence of only the bidentate hooded hooks. The morphological diagnosis and photographs of S. (S.) daphoinos are provided. The partial mitochondrial cytochrome c oxidase subunit I (COI), 16S ribosomal DNA(16S rDNA), and the nuclear 18S ribosomal DNA (18S rDNA) sequences from Korean specimens of S. (S.) daphoinos were determined. Species identification was supported by a comparison of DNA barcode sequences of COI and 16S rDNA with morphological examination from the specimens of type locality, China.

• Animal Systematics, Evolution and Diversity
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• 제38권3호
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• pp.144-147
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• 2022

The polychaete Scolelepis (Scolelepis) sagittaria was originally described from Japanese waters and subsequently reported from Korean waters. In this study, we determined for the first time the mitochondrial cytochrome c oxidase subunit I (COI), 16S ribosomal DNA (16S rDNA), and nuclear 18S ribosomal DNA (18S rDNA) sequences of Korean specimens of S. (S.) sagittaria. We also assessed intraspecific variation in the shape of the prostomium of this species based on an examination of 247 individuals. All materials were collected from intertidal sandy beaches of the Korea Strait. The molecular data and morphological observations reported herein will contribute to gaining a better understanding of the taxonomic relationships among members of the genus Scolelepis.

• Animal Systematics, Evolution and Diversity
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• 제39권4호
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• pp.304-308
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• 2023

The spionid polychaete Scolelepis geniculata, originally described in Japan, is newly recorded in the Korean fauna. Specimens collected from the eastern and southern coasts of Korea between May 1999 and October 2002, stored in the invertebrate collection of the National Institute of Biological Resources, were examined based on their morphology. Scolelepis geniculata is morphologically most similar to S. yamaguchii from Japan and Korea but is distinguished by having branchiae separated from the notopodial lamellae in posterior chaetigers and notopodial prechaetal lamellae digitiform in anterior chaetigers instead of subtriangular. A detailed morphological description of S. geniculate, and an amended identification key to all Korean Scolelepis species is provided.

• Animal Systematics, Evolution and Diversity
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• 제37권4호
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• pp.349-353
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• 2021

Scolelepis (Parascolelepis) papillosa (Okuda, 1937), originally described from a single incomplete individual from Jeju Island in Korea, was collected from the intertidal sandflats of Soan Island (Jeollanam-do province) in Korea. The examined specimens of S. (P.) papillosa agree well with the original description in having the papillae on the basal sheath of the palps, presence of occipital antenna, absence of notochaetae in chaetiger 1, branchiae completely fused with notopodial postchaetal lamellae at the anterior chaetigers, and neuropodial hooded hooks appearing from chaetiger 16. In this study, the sequences of partial mitochondrial cytochrome c oxidase subunit I (COI), 16S ribosomal DNA (16S rDNA), and the nuclear 18S ribosomal DNA (18S rDNA) of the species were determined. We also provide the detailed description and illustrations on this species based on the complete specimens newly collected in this study.

• 환경생물
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• 제28권3호
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• pp.133-142
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• 2010

다도해해상국립공원의 비금.도초지구인 우이도 해역의 조하대에 서식하는 대형무척추동물의 생물다양성, 생물량(개체수 및 생체량) 및 군집구조를 파악하기 위하여 2008년 5월과 9월에 현장조사를 실시하였다. 조사 기간 중, 총 63종 1.4 $m^{-2}$, 3,750개체(268 inds. $m^{-2}$)와 156.14 gWWt (11.15 gWWt $m^{-2}$)의 대형무척추동물이 출현하였다. 출현 종수, 개체수 및 생체량에 있어서 환형동물문의 다모류가 가장 우점하였고, 점유율은 각각 42.85%, 79.36% 및 54.49%이었다. 개체수에 근거한 상위 5위까지의 우점종은 다모류의 가는버들갯지렁이(Notomastus latericeus), Scolelepis sagittaria, Amaeana occidentalis, 단각류의 일곱가시긴뿔옆새우(Mandibulophoxus mai) 및 다모류의 치로리미갑갯지렁이(Glycera chirori) 등이었다. 상위 5위 우점종들이 차지하는 밀도는 2,700개체로 전체의 72.00%를 차지하였다. 연구해역에 서식하는 대형무척추동물의 군집구조를 파악한 결과, 연구해역의 대형무척추동물 군집은 크게 3개의 정점군과 3개의 정점(5월과 9월의 정점 6 및 9월의 정점 5)으로 구분되었다. 이 중 정점군 1은 S. sagittaria와 단각류 3종(일곱가시긴뿔옆새우, Mono-culodes sp. 및 두가시긴뿔옆새우)이 우점하였고, 정점군 2는 가는버들갯지렁이, A. occidentalia 및 단각류의 Urothoe sp. 등이 대표적이었다. 마지막으로 정점군 3은 다모류의 Scolelepis sp., H. filiformis 및 투구갯지렁이 (Sigambra tentaculata) 등이 특징적이었다. 이상을 종합하면, 정점군1은 모래가 많은 정점에서, 정점군 2는 모래와 펄이 혼합된 퇴적상의 정점에서, 그리고 정점군 3은 상대적으로 펄이 많은 정점에서 높은 밀도를 나타낸 종들로 구성되었음을 파악할 수 있었다. 따라서 본 연구해역에서 5월과 9월에 출현한 대형무척추동물 군집은 기질로서 작용하는 퇴적물의 특성에 의해 그 구조를 달리하는 것으로 파악되었다.