Ctenogobius claytonii
Threatened
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Gobiidae (Gobies)
Ctenogobius
Ctenogobius claytonii (Mexican Goby)
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Mouth is terminal and slightly oblique; upper jaw extends to middle of eye; lips are thin; upper lip is free at symphysis; jaw teeth are arranged in two rows with five or six enlarged and slightly recurved in outer row of upper jaw; outer teeth in lower jaw slightly enlarged; gill opening extends ventrally below pectoral fin base; head length 25.1%–26.9% SL; snout length 6.2%–7.3% SL; eye diameter 5.9%–6.1% SL; upper jaw length 8.7%–9.9% SL; pre-dorsal-fin length 32.3%–36.4% SL; pelvic fin length 19.7%–22.9% SL; caudal fin length 25.7%–30.9% SL; body depth 14.6%–17.3% SL; pectoral fin has 15 to 17 rays; first dorsal fin has six spines; second dorsal fin has one spine and 11 rays; third spine of first dorsal fin of males is considerably elongate; pelvic fins are united by membrane to form broad disc; pelvic fin spines are joined by frenum; anal fin has one spine and 12 rays; body is covered with ctenoid scales except for area between nape and origin of dorsal fin, base of pectoral fin, breast, and midline of belly; scales in horizontal series number 32 to 37; a pair of sensory pores is located between eyes; vertebrae number 26 (10 precaudal and 16 caudal).
Color is tan with small flecks of brownish markings on head, two to four dark narrow bars on nape, and five narrow oblong blotches on upper body under dorsal fins; pelvic fin of adult males is dusky; pelvic fin of females bears bilateral streaks running parallel to innermost ray.
Distribution
Western Gulf of Mexico from Texas to Veracruz
Texas
Habitat Associations
Brackish and fresh waters
Biology
60 mm SL
IUCN Red List Status: Vulnerable (VU), assessed 2019-02-11. Resilience: High (Preliminary K or Fecundity.).
References
Ginsburg 1932
Gilbert and Randall 1979 (as Gobionellus atripinnis)
Smith 1997
Hoese and Moore 1998 (as G. claytoni)
Castro-Aguirre et al. 1999 (as G. claytoni)
Murdy and Hoese 2002b
Kullander, S.O. (2003) Gobiidae (Gobies). p. 657-665. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the freshwater fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.
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