香港のアゴアマダイ類について,並びに一新種の記載

抄録

In 1964 two jawfishes were collected, one from Hong Kong, the other from the South China Sea. These have become the first records of the family Opisthognathidae in the Colony.
The first specimen, 64.5mm in standard length, was collected by the author on board the fishing vessel Yuen Ling (of the Agriculture and Fisheries Department, Hong Kong) off the entrance to the Taitam Bay, Hong Kong, in 5 to 7 fathoms of water over a sea-bed of soft mud. The life colour pattern of this small jawfish comprised a reddish brown colour to the head and body, and blackish brown median fins, each of which with a narrow pale yellowish white band just above the base of the fin. This specimen is identified to Opisthognathus evermanni (JORDAN and SNYDER), a native of Japan. Its first occurance in southern China has recently been reported by CHU and his collaborators (1962) from O-tau, Kwang-tung Province, China, based on three specimens varying from 52.7 to 78.9mm in standard length. Although CHu's specimens were collected in 1954 (locality and collecting data unavailable), it appeared that they had not been reported in print. As observed by CHU and his collaborators, the present specimen from Hong Kong differs from the Japanese members of the species (JORDAN and SNYDER, 1902) in having an additional pale yellowish white band close to the caudal fin. This caudal band is most likely a variation of the species.
The second jawfish, which is a much larger specimen, cannot be idenitfied to any existing species of the Opisthognathidae . It is, therefore, herein proposed as new. More pertinent references to the study of this jawfish are BEAUFORT (1951) and CHAPMAN (1920).