Abstract

Fertile eggs of the buffalo sculpin, Enophrys bison, were collected in Puget Sound during March 1976 and brought into the laboratory. Eggs were successfully incubated and larvae were reared to metamorphosis. Larvae were preserved and studied to develop a descriptive series from hatching through metamorphosis. The row of pigment along the bodies ventral midline, common in larval cottids, appears to be of little help as a distinguishing character because of the wide variability in number and overlap with other species. Some important distinguishing characters of E. bison larvae are the 30-31 total myomeres (a relatively low number), the row of four large stellate melanophores on the nape, 95-115 round melanophores on each side of the upper abdomen, a lack of melanophores along the dorsal surface of the body, four elongate preopercle spines and the presence of supraocular, nuchal and parietal spines on the head of specimens 6.7 mm and longer.

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