Ctenogobius boleosoma (Jordan & Gilbert, 1882)
Darter goby
Ctenogobius boleosoma
photo by Sazima, I.

Family:  Gobiidae (Gobies), subfamily: Gobionellinae
Max. size:  7.5 cm TL (male/unsexed)
Environment:  reef-associated; freshwater; brackish; marine, amphidromous
Distribution:  Western Atlantic: USA (southern New Jersey, rarely taken above North Carolina) and Bermuda to southern Brazil.
Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 10-12; Anal spines: 0-0; Anal soft rays: 11-13. About 5 round or elongate dark blotches along mid-side, some with diagonal marks extending upward to form V shapes (Ref. 26938).
Biology:  Euryhaline species, ranging from brackish water (almost entering fresh water) to hypersaline littoral lagoons (Ref. 13628), with a salinity range of 0.0 to 25.9 ppt (Ref. 97140). Found in quiet waters of bays and estuaries, in grassy and muddy areas.
IUCN Red List Status: Least Concern (LC); Date assessed: 11 February 2019 Ref. (130435)
Threat to humans:  harmless


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