Author: (Fries, 1838)
FBname: Sailray
Comments: Occur in moderately deep water but mainly around 250 m in boreal and partly arctic latitudes (Ref. 3167). Maximum reported depth at 2,117 m (Ref. 117245).  Benthic (Ref. 58426).  Feed on all kinds of bottom animals (Ref. 3167), invertebrates and fishes (Ref. 114953).  Males mature at ca. 90 cm TL and young hatch at ca. 15 cm TL (Ref. 119696).  Oviparous.  Distinct pairing with embrace.  Young may tend to follow large objects, such as their mother (Ref. 205).  Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205).  Egg capsules are 10.7 cm long and 7.7 cm wide (Ref. 41251, 41301).  It is not commercially important, and is possibly taken at low level by-catch in deep-water longline and trawl fisheries (Ref. 117245).