Sa Heung Kim

Report on Four Species of Crabs (Crustacea: Decapoda: Brachyura) from Korea

One pilumnoid, Neoactumnus convexus Sakai, 1965, and three xanthoids, Lybia caestifera (Alcock, 1898), Atergatopsis germaini A. Milne-Edwards, 1865, and Platypodia tomentosa (De Man, 1902), are newly recorded in Korean fauna. Korean pilumnoids and xanthoids now consist of fifteen species and twenty species, respectively.

Alteuthoides affinis, a new peltidiid copepod (harpacticoida) associated with the sponge from Cheju Island, Korea

A new species of harpacticoid copepod Alteuthoides affinis associated with the sponge Callyspongia elegans (Thiele) was collected from offshore waters of Cheju Island, Korea, and is described with illustrations. In this genus, only one species, A. kootare Hicks, has been known to occur in association with an hexacnellid sponge from New Zealand. The new species is similar to A. kootare in the general morphologies such as the shape of body, oral appendages, and thoraxic legs. However, it can be separated from A. kootare by the expanded genital double somite, P1 exopod bearing only one claw without reduced accessary nail, and acute rostrum

Two new species of the subfamily donsiellinae (Copepoda, Harpacticoida, Thalestridae) associated with the lsopod from Korea

Two harpacticoid copepods, Pseudonsiella longicaudata n. sp. and Xylora longiantennulata n. sp. belonging to the subfamily Donsiellinae are described. They were found in the wood infested by isopod of the genus Limnoria from the East Sea (Sea of Japan), Korea. The former species is characteristic in having the long caudal ramus and four setae on mandibular basis. The latter one closely resembles X. nertica Hicks in general body form, but is clearly distinguished from X. nertica in that the antennule is much longer and the caudal ramus is longer, and leg 5 endopod bears four setae.

Korea Barcode of Life Database System (KBOL)

A major concern regarding the collection and storage of biodiversity information is the inefficiency of conventional taxonomic approaches in dealing with a large number of species. This inefficiency has increased the demand for automated, rapid, and reliable molecular identification systems and large-scale biological databases. DNA-based taxonomic approaches are now arguably a necessity in biodiversity studies. In particular, DNA barcoding using short DNA sequences provides an effective molecular tool for species identification. We constructed a large-scale database system that holds a collection of 5531 barcode sequences from 2429 Korean species. The Korea Barcode of Life database (KBOL, http://koreabarcode.org) is a web-based database system that is used for compiling a high volume of DNA barcode data and identifying unknown biological specimens. With the KBOL system, users can not only link DNA barcodes and biological information but can also undertake conservation activities, including environmental management, monitoring, and detecting significant organisms.

First Report of Stilt Crab Crossotonotus spinipes (Decapoda: Palicoidea: Crossotonotidae) from Korea

A stilt crab Crossotonotus spinipes (De Man, 1888) is newly reported from Korean waters as a result of continuous taxonomic studies on crabs. The present specimen has a row of tubercles and a longitudinal lobe with denticles on the dorsal border of the propodus of the chelipeds, and a shorter Pereopod 5. The description and illustration of this species are provided.

New Record of Majoid Crab Xenocarcinus conicus(Crustacea: Decapoda: Epialtidae) from Korea

A female crab of Xenocarcinus conicus (A. Milne Edwards, 1865) was collected from Munseum, Jejudo Island. The genus Xenocarcinus is recorded newly in Korean brachyuran fauna. The present specimen has broader and shorter rostrum and eleven sharp teeth on the inner border of dactylus of the first ambulatory leg. Korean epialtid fauna now consists of eight species of four genera.