Cetostoma regani
No common name
NS
GNR
Collection Details
Specimens
Photos
There are no photos available for this taxon yet.
Records
Taxonomic Hierarchy
Cetomimidae
Cetostoma
Cetostoma regani
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.
It may contain errors in spelling, punctuation, or formatting.
When citing, please reference the original source rather than this page.
Learn more about our species accounts.
Characters
Elongate, slender, and compressed posteriorly, with a moderately long head, elevated and relatively long dorsal and anal fin bases, and numerous skin ridges along belly. Snout has slightly concave dorsal profile and is acute. Jaw teeth are small and are arranged in diagonal rows. Palatine teeth are present. Ventral midline of gill arches has three narrow tooth plates (copular tooth plates). Eye is minute and lacks lens. Four free gill arches are present, and slit behind fourth is restricted to tubular hole. First gill arch has 3 to 5 tooth plates on epibranch and 8 to 10 on lower limb. Head length is 22.3% to 31.4%, snout length is 7.9% to 12.5%, upper jaw length is 15.4% to 23.5%, lower jaw length is 15.9% to 24.7%, snout to dorsal fin origin is 50.5% to 60.1%, dorsal fin base length is 28.1% to 38.1%, snout to anal fin origin is 51.8% to 65.9%, and anal fin base length is 22.4% to 35.2% of SL. Pectoral fin has 20 or 21, dorsal fin has 29 to 37, and anal fin has 26 to 34 rays. Lateral line system on head consists of series of large canals with wide pores. Lateral line on trunk consists of tubes pierced by 16 to 18 pores, with posterior pores covered by flaps extending from anterior margin of pores. Lateral line scales are round, rectangular, or diamond shaped and number 15 to 17. Vertebrae number 48 to 53.
Color in preservative is brown, with head light brown and mouth, gill cavities, and intestinal track light brown. In life, head is reddish brown, body is black, and fins are black with bright red margins.
Distribution
Florida to northern South America, including the Gulf of Mexico and the Caribbean Sea
Gulf of Mexico
Habitat Associations
Mesopelagic and bathypelagic depths
Biology
Food consists of euphausiid and decapod crustaceans
Maximum known size is 220 mm SL
Normal diurnal distribution is between 700 and 1200 m The shallowest diurnal capture (500-600 m) is of one of the smallest specimens (4.3 cm) and the deepest (1500-1600 m) is of one of the largest (20.4 cm), indicating a trend for the diurnal depth to increase with increasing size (Ref. 9791). Nocturnal distribution is between 110-700 m (Ref. 9791). Feeds on decapods and euphausiids (Ref. 6715). Minimum depth from Ref. 58018.
IUCN Red List Status: Data Deficient (DD), assessed 2014-07-15. Resilience: Medium (Assuming tmax>3).
Phylogeny and Morphologically Similar Fishes
Distinguished from the other species of the family by the combination of characters described
Commercial or Environmental Importance
Fisheries: bycatch.
References
Parr 1928
Parr 1934
Paxton 1986
Paxton 1989
Tolley et al 1989
Paxton, J.R. and D.J. Blake (1990) Cetomimidae. p. 607-608. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Parisl. Vol. 2.
Paxton, J.R. (1986) Cetomimidae. p. 524-525. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 2.
Paxton, J.R. (1989) Synopsis of the whalefishes (family Cetomimidae) with descriptions of four new genera. Records of the Australian Museum 41:135-206.
Comments On Cetostoma regani