Abstract
The appearance sequence of calcified germ teeth and morphological changes in pharyngeal teeth of Gnathopogon elongatus elongatus larvae and juveniles, obtained from artificially fertilized eggs of fish caught in a canal in Nagahama City, facing Lake Biwa, are described. The appearance sequence of calcified germ teeth was similar to those in G. caerulescens, both species exhibiting the socalled “A-type” pattern. Morphological changes in the pharyngeal teeth were divided into six stages, the first five being similar to comparable stages in Mylopharyngodon piceus. However, teeth at the sixth stage differed from those in M.piceus, the latter beeing characterized by a smooth grinding surface.
