日本産ウグイ亜科とコイ亜科魚類の咽頭骨と咽頭歯について

概要

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The present paper describes the characteristics of pharyngeal bones and the teeth in seven genera and eleven species of Japanese Leuciscine and Cyprinine fishes. 1) In Leuciscinae, pharyngeal bone with distinct or indistinct anterior angle but without distinct posterior one, breadth 3.3-5.2 in length, length 11.0-16.0 in standard body length of the fish, anterior limbs about equal in length (but anterior limb of Opsariichthys unciristris far longer than posterior one). Pharyngeal teeth two- or three-rowed, always asymmetrical in number in both sides, first or main row with four to five (rarely six) teeth, teeth moderately compressed with narrow grinding surface without serration, second and third rows with one or four small teeth without grinding surface. 2) In Cyprininae, pharyngeal bone rather stouht and big, length 8.5-9.0 in standard body length of the fish, breath 2.4-4.0 in ength, with distinct anterior angle and indistinct posterior one, anterior limb much shorter than posterior one, tip of anterior limb pointed, posterior edentulous process depressed and twisted in terminal region. Pharyngeal teeth one- (Carassius) or two-rowed (Cyprinus), symmetrical in number, teethof fisht row with strong ginding surface. The writers have established the keys according to the morprological characters of the pharyngeal bones and the teeth for convenience to identification.
社団法人日本動物学会の論文
1962-10-15