日本産カマツカ亜科魚類の咽頭骨と咽頭歯

概要

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(1) The present paper describes the characteristics of pharyngeal bones and their teeth in seven genera and twelve species of Japanese Gobionid fishes. (2) The characteristics of Pharyngeals and their teeth in Gobionids, as a whole, are summarized as follows;- Pharyngeals with more or less distinct anterior angle, without or with indistinct posterior angle, breadth 3.1-5.5 in length, length short, 13-20 in body length, posterior limb always longer than anterior one or equal in length. Breadth of pitted surface 66-80% of the breadth of bone. Teeth one to three-rowed, primary (or main) row with five teeth, teeth of main row moderately compressed, laterally symmetrical, with developed grinding surface, but without serration on the side. (3) In accordance with the differences in shape and structure of the pharyngeals and their teeth, Gnathopogon elongatus and G.caerulescens, or Pseudorasbora parva and P.pumila, should be considered independent species of each other and not sub-species. (4) As a substitute for conclusion, the writers have established the following keys according to the characters of them for convenience to identification.
社団法人日本動物学会の論文
1961-07-15