Astroscopus

Astroscopus, the electric stargazers, is a genus of stargazers, a type of percomorph fish from the family Uranoscopidae, part of the order Labriformes.^[3] The species in this genus are anatomically distinct uranoscopids, being characterized by internal nares and being the only group of marine bony fish having organs which produce electricity which are derived from the extraocular muscles. They are found on the Atlantic and Pacific coasts of the Americas.^[4]

Astroscopus Temporal range: Late Miocene to present PreꞒ Ꞓ O S D C P T J K Pg N
Northern stargazer (A. guttatus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Labriformes
Family:	Uranoscopidae
Genus:	Astroscopus Brevoort, 1860[1]
Type species
Uranoscopus anoplos[2] Valenciennes, 1832
Synonyms
Agnus Günther, 1860 Upselonphorus Gill, 1861

Species

There are four extant and one extinct species included in Astroscopus:^[5]

Pacific stargazer (A. zephyreus)

• Astroscopus guttatus Abbott, 1860 - Northern stargazer
• Astroscopus sexspinosus (Steindachner, 1876) - Brazilian Stargazer
• Astroscopus y-graecum, (Cuvier, 1829) - Southern stargazer
• Astroscopus zephyreus Gilbert & Starks in Gilbert, 1897
• †Astroscopus countermani Carnevale, Godfrey & Pietsch, 2011 Extinct species described from the Tortonian deposits of Calvert Cliffs, Maryland.^[4]