Echinogobius hayashii, A new genus and species of gobiidae |
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Authors: | Akihisa Iwata Seiichi Hosoya Yasuo Niimura |
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Affiliation: | (1) Imperial Household, 1-1 Chiyoda, Chiyoda-ku, 100-0001 Tokyo, Japan;(2) Shin-Nippon Meteorological and Oceanographical Consultant Co. LTD., 3-14-5 Tamagawa, Setagaya-ku, 158 Tokyo, Japan;(3) 580-3 Yoyasu, 501-25 Gifu City, Gifu, Japan |
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Abstract: | Echinogobius hayashii, a new genus and species of Gobiidae is described, based on 11 specimens from Japan and Australia. This genus is distinguishable from all other gobiid genera in having the following combination of characters: first spine of first dorsal fin hard and straight, about 1.5 times second spine in thickness; first spine of second dorsal fin hard, with similar thickness as first soft ray of second dorsal fin, supported by two normally-sized pterygiophores; snout convex; preopercular spine absent; predorsal scales absent; all scales cycloid. The species occurs between 1–20 m in clear water on clear sandy bottoms influenced by fast tidal currents. Based on our observations, it is not associated with an alpheid shrimp. |
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Keywords: | New genus new species Gobiidae Echinogobius |
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