但馬沖合から採集したベニズワイ(新稱)に就いて

概要

論文の詳細を見る
11 specimens (10 ??, 1 ?? ) of a spider crab belonging to Chionoceetes were collected at the “Okitai” Bank (36° 42 30" N., 134° 26 30" E., 450m.) off the coast of Tajima Province, on Oct. 2, 1948, by means of a trawl net. On examining them, the writer recognized that they are exactly. agreeing with the description of Chionoecctes japonicus by Rathbun (1932), as well as that of Chionoecetes angulatus bathyalis by Derjugin et Kobjakowa (1935). So he refers those specimens to Chionoecetes japonicus and proposes that Chionoecetes angulatus bathyalis is to be regarded as a synonym of Chionoecetes japonicus. He compared the difference of some body proportions, form of carapace, spines and tubercles on the carapace and color of body between this species and the most common Japanese species Chionoecetes opilis elongatus. He gave them a new Japanese name “Beni-Zuwai” (carmine-red-colored Chionoecetes), due to the color of the dorsal side of carapace and legs.