Stomiiformes

Stomiiformes: Luminescent organs (photophores) present; chin barbel present in some; premaxilla and maxilla in gape of mouth - both have teeth; mouth extending past eye in most; scales, if present, cycloid and easily lost; pectoral, dorsal, or adipose fins absent in some; ventral adipose fin present in some; pelvic fin rays 4-9; branchiostegal rays 5-24. Color in most is dark brown or black; some are silvery (primarily some Gonostomatoidei). Most tropical to temperate; many are deep-sea.
 * See Fishbase.

Families in this order:
 * Gonostomatidae
 * Phosichthyidae
 * Sternoptychidae
 * Stomiidae