- 著者
-
本村 浩之
瀬能 宏
岩槻 幸雄
- 出版者
- The Ichthyological Society of Japan
- 雑誌
- 魚類学雑誌 (ISSN:00215090)
- 巻号頁・発行日
- vol.48, no.1, pp.41-47, 2001-05-25 (Released:2011-07-04)
- 参考文献数
- 39
- 被引用文献数
-
2
A single large specimen (MUFS 18880, 739 mm in standard length) of polynemid fish, Eleutheronema tetradactylum (Shaw, 1804), collected by a large set net off the mouth of Azuma River, Fukaura, Aomori, northern Japan, represents the first reliable record from Japan and northernmost record of the species. Furthermore, a lateral line squamation character on the caudal fin membrane is herein described as newly-recognized diagnostic character for the species. Eleutheronema tetradactylum is characterized as follows: four pectoral filaments; lower jaw lips restricted to posterior one-third of lower jaw, vomer with tooth plates on either side; lateral line on caudal fin membrane divided into three lines.