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Onigocia Bimaculata, A New Species of Flathead Fish (Scoprpaeniformes: Platycephalidae) from the Indo-Pacific
Leslie W. Knapp, Hisashi Imamura, and Mitsuhiro Sakashita
Abstract
A new platycephalid, Onigocia bimaculata, is described from 67 specimens collected from
across the Indo-Pacific. This wide-ranging species has been taken in shorefish
collections from southern Japan to American Samoa, Australia, Mauritius, Comoro
Islands and Gulf of Aqaba. It is distinguished from known congeners by the following
combination of characters: presence of a broad interopercular flap; lateral-line
scales 32-39 (mean 35.7), anterior 2-4 scales bearing a spine; anal-fin rays
usually 11; total gill rakers on first arch 6-9; interobital width 0.5-1.9%
SL; no ocular flaps; iris lappet bilobed; two small blackish spots near margin
of first dorsal fin; and pelvic fin with a large black spot on upper surface
near base and usually one or two small black spots or bands distally.
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