Maximum length measured is 140 cm . Occurs over sand and mud. Feeds on fishes, crustaceans, mollusks and plankton. Ovoviviparous, gestation lasting about 6 months with 4 to 7 embryos produced per female .
Tail short armed with spine. Disk very broad. Very low dorsal and ventral finfolds on tail . Disk dark brown to grayish, lower surface of disc and of pelvic fins white, brownish, rosy or rusty cast. Tail white or rosy white below .: other.
Behavioural data for Spiny butterfly ray is currently being reviewed.
Diet information for Spiny butterfly ray is currently being compiled.
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures . Distinct pairing with embrace .
Marine; brackish; demersal; depth range 5 - 100 m . Subtropical; 47°N - 39°S, 98°W - 42°E
fishes, crustaceans, mollusks and plankton
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