Careproctus melanurus Gilbert, 1892 .

Blacktail Snailfish. To 32.5 cm (12.8 in) SL ( Personal communication: Royal British Columbia Museum Fish Collection, Victoria, British Columbia, Canada). Southeastern Alaska to at least Isla Guadalupe, central Baja California ( Personal communication: Los Angeles County Museum of Natural History Fish Collection, Los Angeles, California). Depth: 50–2,286 m (290–7,500 ft) (min.: Personal communication: California Academy of Sciences Fish Collection, San Francisco, California; max. Stein 1978).