Ryocalanus spinifrons,a new species of Ryocalanidae (Copepoda: Calanoida), from the southwestern part of Sagami Bay,Japan |
| |
| Authors: | Shimode Shinji Toda Tatsuki Kikuchi Tomohiko |
| |
| Institution: | (1) Seto Marine Biological Laboratory, Graduate school of Sciences, Kyoto University, Shirahama-cho, Nishimuro-gun, Wakayama, 649-2211, Japan;(2) Department of Bioengineering, Faculty of Engineering, Soka University, Tangi-cho, Hachioji-shi, Tokyo, 192-8577, Japan;(3) Department of Environmental Sciences, Faculty of Education and Human Sciences, Yokohama National University, Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan |
| |
| Abstract: | A new Ryocalanoid copepod, Ryocalanus spinifrons, collected by the MTD net system at a depth of 1400 m from the southwestern part of Sagami Bay, Japan, is described. The new species is morphologically very close to R. infelix Tanaka, 1956 (female unknown) from the Izu region of Sagami Bay. It is distinguished from other species by the presence of 12 long spinules on the ventral inner side of the fifth pedigerous somite, nine setae on the coxal epipodite of the maxillule and nine large robust spinules on the coxal segment of the fourth leg. The row of five robust spines on the paragnath distinguishes R. spinifrons. |
| |
| Keywords: | new species Ryocalanoid copepod taxonomy benthopelagic Sagami Bay |
| 本文献已被 SpringerLink 等数据库收录！ |
|
