Japanese Journal of Ichthyology
Online ISSN : 1884-7374
Print ISSN : 0021-5090
ISSN-L : 0021-5090
A New Subspecies of the Ayu, Plecoglossus altivelis, (Plecoglossidae) from the Ryukyu Islands
Mutsumi Nishida
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1988 Volume 35 Issue 3 Pages 236-242

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Abstract

A new subspecies of the ayu, Plecoglossus altivelis ryukyuensis, is described on the basis of specimens from Amami-oshima and Okinawa Islands, the Ryukyu Islands, Japan. This new subspecies is distinguished from P. altivelis altivelis by the fewer numbers of pectoral fin rays, longitudinal scales and scales above and below the lateral line, and also by the unique electrophoretic mobilities of several enzymes.

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© The Ichthyological Society of Japan
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