A new species of the genus Tetranchyroderma (Gastrotricha: Macrodasyida: Thaumastodermatidae) from Korea, with a peculiar pentancrous armature SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
A new species of the genus Tetranchyroderma (Gastrotricha: Macrodasyida: Thaumastodermatidae) from Korea, with a peculiar pentancrous armature
Author(s)
Lee, Jimin; Chang, Cheon Young; Kim, Il-Hoi
KIOST Author(s)
Lee, Ji Min(이지민)
Alternative Author(s)
이지민
Publication Year
2017-11-13
Abstract
Surveys of marine gastrotrichs on the coast of South Korea yielded a new species of the genus Tetranchyroderma, bearing 5-pronged hooks as a cuticular armature. Tetranchyroderma hummoni is characterized by a dorsal armature adorned with pentancres, whose central tines are about twice as long as peripheral tines. The new species is also characterized by bearing 3 large and broad papillae per side along boundary row of pentancres on oral hood, a pair of rod-like cephalic tentacles, and a pair of modified pestle organs. Moreover, this new species is clearly distinguished from its congeners by the number of dorsal, dorsolateral and ventrolateral cirratum-type tubes (6-10, 13-19, and 9-14 per side, respectively), and by a pair of foot-like ventral adhesive tubes. The description of the new species belonging to the genus Tetranchyroderma is based on detailed illustrations and scanning electron microscopy. We also provide a short account on the variability within the species, including the morphological difference between juveniles and adults.
ISSN
0006-324X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40349
DOI
10.2988/17-00016
Bibliographic Citation
PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON, v.130, no.1, pp.155 - 164, 2017
Publisher
BIOL SOC WASHINGTON
Subject
ITALIAN MARINE GASTROTRICHA; SOUTH-KOREA; PTYCHOSTOMELLA MACRODASYIDA; ISLAND; BEACH; KEY
Keywords
interstitial; marine; meiofauna; northwest Pacific; pentancres; taxonomy
Type
Article
Language
English
Document Type
Article
Publisher
BIOL SOC WASHINGTON
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