• Proceedings of the Zoological Society Korea Conference
• /
• 1994.10a
• /
• pp.96.1-96
• /
• 1994

• Proceedings of the Zoological Society Korea Conference
• /
• 1996.04a
• /
• pp.32.2-32
• /
• 1996

• Animal cells and systems
• /
• v.2 no.3
• /
• pp.315-321
• /
• 1998

Two new marine gastrotrichs of the family Thaumastodermatidae are described from South Korea. Tetranchyroderma gracilium n. sp. bears pestle organs, tetrancres, and two pairs of large dorsolateral tubes. It seems most closely related to T. massiliense Swedmark, T. heterotubulatum Hummon, Todaro and Tongiorgi, and T. boreale Clausen. Thaumastoderma copiophorum n. sp. has five pairs of dorsal cirrata, the overall picture of which differs clearly from that of all known species. In the presence of accessory cirrata, it relates to T. appendiculatum Chang, Lee and Clausen.

• Animal Systematics, Evolution and Diversity
• /
• v.22 no.1
• /
• pp.109-115
• /
• 2006

Two marine gastrotrich species are reported from sublittoral sand bottom of Korea: Diplodasys ankeli Wilke, 1954 and D. meloriae Todaro, Balsamo and Tongiorgi, 1992. Both species are redescribed in detail, with the discussion on the intraspecific variability between Korean specimens and the original description or among Korean specimens. The genus Diplodasys is newly recorded from Korea as well as the Northwest Pacific.

• Animal cells and systems
• /
• v.6 no.3
• /
• pp.207-213
• /
• 2002

Two new marine gastrotrichs of the genus Pseudostomella, P. longifurca and P. koreana, are described from the shallow sublittoral sand bottoms of South Korea. Pseudostomella longifurca n. sp. is characterized by the cuticular armature with tetrancres, five dorsal papillae on the prebuccal apparatus, four dorsolateral adhesive tubes, and elongated pedicle. Pseudostomella koreana n. sp. is distinguished from its congeners by the small body, tetrancres, two pairs of dorsolateral adhesive tubes, and tube-shaped copulatory organ. A brief review of the genus is prepared, with the character comparison table for all congeners currently recognized, and a revised key to the species of Pseudostomella. This is the first record of the genus Pseudostomella from East Asia.

• Animal Systematics, Evolution and Diversity
• /
• v.30 no.2
• /
• pp.103-107
• /
• 2014

A new gastrotrich species of the genus Dendrodasys (Dactylopodolidae) is described on the basis of specimens collected from sublittoral fine sandy bottoms at Uljin, East Sea and at Gujwa, the northeastern coast of Jeju Island, South Korea. Dendrodasys duplus is characterized by a triangular head with lateral lobes extending outward, two pairs of pestle organs posterior to the lateral cephalic lobes, a pair of anterior adhesive tubes, the absence of dorsal, lateral and ventral adhesive tubes, large posterior adhesive tubes arising from the anterior third of the caudal peduncle, and paired testes of different lengths. The genus Dendrodasys is recorded for the first time in East Asia.

• Animal Systematics, Evolution and Diversity
• /
• v.16 no.1
• /
• pp.87-104
• /
• 2000

Ten gastrotrich species belonging to family Chaetonotidae are recorded on the basis of the material from various freshwater bodies at 65 localities in South Korea: Polymerurus rhomboides (Stokes), P. nodicaudus (Voigt), Lepidodermella squamata (Dujardin), Chaetonotus (Zonochaeta) succinctus Voigt, C. (Z.) bisacer Greuter, C.(Euchaetonotus) polyspinosus Greuter, C.(E.) heterospinosus Balsamo, C.(E.) heideri Brehm, C.(E.) zelinkai Grunspan, and C.(Hystricochaetonotus) persetosus Zelinka. All the species are illustrated and briefly commented on their affinities and habitats, with a key to the ten species of Chaetonotidae from Korea. This is the first record on the freshwater gastrotrichs from Korea.

• Animal Systematics, Evolution and Diversity
• /
• v.28 no.1
• /
• pp.42-47
• /
• 2012

A new gastrotrich species of the genus Crasiella (Planodasyidae) is described from the sublittoral sandy bottom of Jeju Island, South Korea. The family Planodasyidae and the genus Crasiella are recorded for the first time from East Asia. Crasiella clauseni n. sp. differs from its congeneric species by the combination of characters: absence of cephalic sensory pits; unseparated arrangement of anterior tubes and ventrolateral tubes, comprising about 120 adhesive tubes along whole body length; 5-7 horizontal rows of adhesive tubes and a pair of TbV in the anterior part of pharyngeal region; bifid pedicles with 8-11 posterior adhesive tubes; and tube-shaped seminal receptacle and copulatory organ. This paper deals with description of the new species, and provides a key to the species of genus Crasiella.

• Animal Systematics, Evolution and Diversity
• /
• v.33 no.1
• /
• pp.17-25
• /
• 2017

Two marine gastrotrich species of the genus Acanthodasys, A. ericinus Lee, 2012 and A. comtus Lee, 2012, are taxonomically reconsidered. Both of them were originally described based on the specimens from intertidal or sublittoral sandy bottom of the Yellow Sea and Jeju Island, South Korea, and included in a monographical publication of in 2012. However, the description of them was quite insufficient, and designations of type specimens were entirely lacking. In this study, we make a subsequent designation of type specimens for the two Acanthodasys species, and carry out a full redescription of them with additional remarks on their morphological micro-characteristics by scanning electronic microscopy. Some brief nomenclatural notes on Korean marine gastrotrichs are also provided.

• Animal cells and systems
• /
• v.13 no.1
• /
• pp.25-30
• /
• 2009

A new marine gastrotrich species, Ptychostomella jejuensis n. sp. belonging to the family Thaumastodermatidae, is described on the basis of the specimens from subtidal sand bottom at about 6-7 m depth of Jeju Island, South Korea. Ptychostomella jejuensis n. sp. is distinguished from its congeneric species with smooth cuticular armature by the character combination: (1) small body up to about 160 ${\mu}m$ in length; (2) presence of knob-like cephalic tentacles; (3) absence of dorsal and ventral adhesive tubes; (4) bifid pedicles; (5) pyriform copulatory organ. Under scanning electron microscopy, numerous epidermal gland openings were observed in the new species, characteristically flanking a bristle. Taxonomic accounts on the affinities, some brief remarks on the epidermal gland openings and the cooccurrence with P. orientalis Lee and Chang, 2003 are also presented with detailed illustrations and scanning electron photomicrographs.