Trygonoptera

Trygonoptera is a genus of round rays endemic to the waters around Australia. Müller and Henle defined Trygonoptera in 1841.^[1] It has often been considered synonymous with Urolophus, but this has been refuted by recent studies.^[2] Trygonoptera can be distinguished from Urolophus in that the outer rims of its nostrils are enlarged into broad, flattened lobes; the two also differ in aspects of the skeleton.^[3]

Trygonoptera
Striped Stingaree (T. ovalis)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Myliobatiformes
Family:	Urolophidae
Genus:	Trygonoptera J. P. Müller & Henle, 1841
Type species
Trygonoptera testacea J. P. Müller & Henle, 1841

Species

There are currently six recognized species in this genus:^[4]

Image	Scientific name	Distribution
	Trygonoptera galba Last & Yearsley, 2008 (Yellow shovelnose stingaree)	Australia
	Trygonoptera imitata Yearsley, Last & M. F. Gomon, 2008 (Eastern shovelnose stingaree)	southeastern Australia, excluding Tasmania.
	Trygonoptera mucosa Whitley, 1939 (Western shovelnose stingaree)	southwestern Australia from Perth to Gulf St Vincent.
	Trygonoptera ovalis Last & M. F. Gomon, 1987 (Striped stingaree)	southwestern Australia.
	Trygonoptera personata Last & M. F. Gomon, 1987 (Masked stingaree)	southwestern Australia
	Trygonoptera testacea J. P. Müller & Henle, 1841 (Common stingaree)	eastern Australia,