There are nine recognized species, all of which are classified as
critically endangered: •
Glaucostegus cemiculus (
Geoffroy St. Hilaire, 1817) (Blackchin guitarfish) •
Glaucostegus granulatus (
Cuvier, 1829) (Sharpnose guitarfish) •
Glaucostegus halavi (
Fabricius 1775) (Halavi guitarfish) •
Glaucostegus microphthalmus (
Teng, 1959) (Smalleyed guitarfish) •
Glaucostegus obtusus (
Müller &
Henle, 1841) (Widenose guitarfish) •
Glaucostegus spinosus (
Günther, 1870) (Spiny guitarfish) •
Glaucostegus thouin (Anonymous
Lacépède], 1798) (Clubnose guitarfish/Thouin ray) •
Glaucostegus typus (Anonymous
E. T. Bennett], 1830) (Giant guitarfish) •
Glaucostegus younholeei (
Habib &
Islam, 2021) (Bangladeshi guitarfish) == References ==