Rypticus randalli
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Serranidae (Sea Basses and Groupers)
Rypticus
Rypticus randalli
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
Rayed sections of dorsal and anal fins fleshy, inner pelvic rays connected to body by a membrane. Anterior naris tubular and moderately separated from posterior naris. Maxilla extends beyond posterior margin of orbit. Jaw, vomer, and palatine teeth villiform and about same size. Preoperculum semicircular, with two (occasionally one) spine. Dorsal margin of operculum joined to head by membrane. Gill rakers on first arch short and number 7 to 11, excluding rudiments. Measurements (% SL): head length 30%–34%, snout length 5%–6%, upper jaw length 13%–16%, predorsal-fin length 36%–42%. Pectoral fin rounded with 14 to 16 rays. Dorsal fin with rounded posterior margin, three spines, and 23 to 25 rays. Anal fin with rounded posterior margin and 15 or 16 (rarely 14) rays; spines lacking. Caudal fin rounded. Scales small and embedded. Head, except lips, scaled. Skin covered with thick mucus containing toxin (grammistin). Vertebrae number 24: 10 precaudal and 14 caudal. Pyloric caecae number three.
Uniformly dark-colored body; color is dark brown
Distribution
Western Atlantic from southern Gulf of Mexico
Recorded once from southern Gulf of Mexico, at Isla de Lobos, Veracruz
Habitat Associations
Shallow water on muddy bottoms; depth range not specified
Muddy bottoms
Biology
Maximum known size is 138 mm SL
IUCN Red List Status: Least Concern (LC), assessed 2012-08-23.
References
Courtenay 1967
Castro-Aguirre and Márquez-Espinoza 1981
Heemstra 2002c
Ramjohn, D.D. (1999) Checklist of coastal and marine fishes of Trinidad and Tobago. Marine Fishery Analysis Unit, Fisheries Division, Ministry of Agriculture, Land and Marine Resources, Trinidad and Tobago. Fisheries Information Series 8, 151 p.
Heemstra, P.C., W.D. Anderson and P.S. Lobel (2003) Serranidae. Groupers (seabasses, creolefish, coney, hinds, hamlets, anthiines, and soapfishes). p. 1308-1369. In K.E. Carpenter (ed.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Atlantic. Vol. 2: Bony fishes part 1 (Acipenseridae to Grammatidae).
Dias, J.F., W.S. Fernandez and T.C.S. Schmidt (2014) Length-weight relationship of 73 fish species caught in the southeastern inner continental shelf region of Brazil. Lat. Am. J. Aquat. Res. 42(1):127-136. DOI: 10.3856/vol42-issue1-fulltext-10
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