Glaucostegus

Glaucostegus
Giant guitarfish (G. typus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Rhinopristiformes
Family:	Glaucostegidae Last, Séret & Naylor, 2016
Genus:	Glaucostegus Bonaparte, 1846

Glaucostegus, also known as giant guitarfishes, is a genus of large Indo-Pacific rays, with a single species, G. cemiculus, in the East Atlantic and Mediterranean. They were formerly classified in the family Rhinobatidae but are now recognized as a distinct family, Glaucostegidae.

Their upperparts are uniform pale yellowish, brownish or greyish, and the nose is pale. Most are large, reaching 1.7–3 m (5.6–9.8 ft) in length depending on the exact species involved, except for the small G. obtusos that is less than 1 m (3.3 ft).

There are six recognized species:

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