Platytroctidae

The tubeshoulders are a family, Platytroctidae, of ray-finned fish belonging to the order Alepocephaliformes. They are found throughout the world, except for the Mediterranean Sea. Tubeshoulders live at moderate depths of 300 to 1000 m, and some have light-producing organs. They are generally small to medium fish, ranging from 9 to 33 cm in length.

Genera
The family contains the following genera:
 * Barbantus
 * Holtbyrnia
 * Matsuichthys
 * Maulisia
 * Mentodus
 * Mirorictus
 * Normichthys
 * Pectinantus
 * Persparsia
 * Platytroctes
 * Sagamichthys
 * Searsia
 * Searsioides
 * Vachalia