2324 
Family Scopelarchidae 
Body elongate, compressed. Snout conic. Eyes telescopic, lateral, 
directed upward. Mouth cleft wide. Premaxillary large. Maxillary, if 
present, small. Teeth on premaxillaries, dentaries, vomer, palatines and 
tongue, depressible and unequal. Gill openings wide, membranes separate. 
Gill rakers small. Pseudobranchiae present. Gills 4. Scales very 
deciduous or absent? Dorsal short, before ventral. Adipose fin high, 
over hind half of anal. Anal long, postmedian. Caudal forked. Ventral 
premedian. 
Analysis of genera 
/ ..L ,2 — JL Im Z -■»— ■■■ -1-I . - ■■■— 
a^. Eyes telescopic; pectoral longer than ventral; depth 5 1/4. - - - - 
-- -------------------------- gcopelarchus . 
2 
a. . Eyes partly telescopic; ventral longer than pectoral. - Scopelarchoides. 
a^. F.yes normal; paired fins small; depth 3 1/8. ------- Promacheon. 
