Family Aphyonidae 224aphyonids Marine Atlantic Indian and Pacific

Scales absent; swim bladder absent; dorsal and anal fins confluent; dorsal fin origin posterior, well behind pectoral fin; eyes poorly developed; opercular spine weak or absent; no sensory pores on head; pyloric caeca absent; pelvics jugular, one ray in each (absent in a few species); ovaries bilobed; precaudal vertebrae 26-48 (total of 68-86 vertebrae). A number of neotenic characters are present. Most species occur in depths exceeding 700 m.

Six genera, Aphyonus, Barathronus, Meteoria, Nybelinella, Parasciadonus, and Sciadonus, with 22 species (Nielsen et al., 1999).

Was this article helpful?

0 0

Post a comment