A new gastrotrich species of the genus Tetranchyroderma (Macrodasyida: Thaumastodermatidae) from Korea

作者：Lee Jimin; Chang Cheon Young^*

来源：Proceedings of the Biological Society of Washington, 2014, 127(1): 209-215.

DOI：10.2988/0006-324x-127.1.209

• Gastrotricha
• marine
• new species
• taxonomy
• triancres

A new gastrotrich species of the genus Tetranchyroderma, bearing three-pronged cuticular hooks, was discovered in the Pacific, from littoral sandy bottoms of a beach at Joyagdo Island off Wando, south coast of the Korean Peninsula. Tetranchyroderma pinnatum, sp. nov., is characterized by feathered triancres, two pairs of rod-like cephalic tentacles, absence of dorsal and dorsolateral adhesive tubes, a short testis, and a large tube-shaped copulatory organ. Scanning electron microscopy is used to describe the fine details of the species, and a comparison among known species with triancres is provided. We also provide a key to the species of the genus Tetranchyroderma recorded in the northwest Pacific.

• 出版日期2014-7-9