Abstract
On October 5, 1973, a considerable number of a stromateoid fish (1.8 tons in weight) was fecture, Kyushu.This fish was taken by a single-wing purse seine from the surface in an area of 80 m in depth around Aji-sone Bank (32°20'N, 129°30'E) in the early morning of October 5, 1973.Aji-sone Bank is located near the west Kyushu sea valley between Goto and Amakusa Islands, into.which a branch of the warm Tsushima Current pours directly.An immature specimen was sent to the senior author.A detailed examination revealed that this fish could be ascribed to Ariomma brevimanus Klunzinger which was previously recorded only from Red Sea by a single specimen (Klunzinger, 1884).As this specimen is the second specimen to be recorded, the authors describe it here in detail.
In the examination of the specimen, the vertebrae were counted by means of X-ray photograph and the caudal skeleton was observed after alizarin treatment.The gonad was histologically examined.
