Glaucostegus granulatus (Cuvier, 1829)
Granulated guitarfish
photo by Randall, J.E.

Family:  Glaucostegidae (Giant guitarfishes)
Max. size:  280 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 0 - 119 m
Distribution:  Northern Indian Ocean; Persian Gulf to Myanmar.
Diagnosis:   
Biology:  Ranges from the intertidal to offshore continental shelves down to 119 m (Ref. 9909). A carnivorous fish that feeds on large shellfishes (Ref. 58784). Ovoviviparous (Ref. 50449). Produces 6-10 pups a litter (Ref.114953). Biology little known (Ref. 9909). Utilized where it occurs but details lacking (Ref. 9909).
IUCN Red List Status: Critically Endangered (CR); Date assessed: 04 April 2022 (A2bd) Ref. (130435)
Threat to humans:  harmless
Country info:  Outside distributional range (Ref. 114953). An Indian Ocean species which may be confused with Glaucostegus typus; records from Cebu market and Malampaya Sound, west coast of Palawan (Ref. 280) needs verification (Ref. 47737). Also in Ref. 97528.


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