Trygonorrhina dumerilii (Castelnau, 1873)
Southern fiddler ray

Family:  Trygonorrhinidae (Banjo rays, Fiddler rays)
Max. size:  146 cm TL (male/unsexed)
Environment:  demersal; marine; depth range 5 - 205 m
Distribution:  Eastern Indian Ocean: endemic to southern Australia.
Diagnosis:  This large shovelnose ray is distinguished by the following characters: suboval disc, short and broadly rounded snout with nostrils partly covered with a large nasal curtain; ridges of small thorns present on mid-line of disc and shoulders; behind interorbital space is an ornate pattern of dark-edged bands without the distinct triangular or diamond-shaped marking (Ref. 114953).
Biology:  A benthic species that occurs on continental shelf, mainly found on soft bottoms and seagrasses. Feeds on bottom crustaceans, worms, molluscs and small fishes. Produces litters of 2-5 pups. Maturity size of males at ca. 70 cm TL, females at 89 cm TL; birth size at 21-25 cm TL (Ref. 114953).
IUCN Red List Status: Least Concern (LC); Date assessed: 24 March 2015 Ref. (130435)
Threat to humans:  harmless

Source and more info: For personal, classroom, and other internal use only. Not for publication.