Peristedion greyae
Alligator Searobin
Collection Details
Specimens
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Scorpaeniformes (Lionfish, Stonefish and others)
Peristediidae (Armored Searobins)
Peristedion
Peristedion greyae (Alligator Searobin)
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
Head moderately broad, snout moderately long; rostral projection narrow with single spine near base; nasal spine absent; lower jaw with 2-3 serrated ridges; lip barbels slender, in 2 groups of 2; chin barbels slender, 12-13 in 5 clusters; filamentous mandibular barbel moderately long; perifacial rim with broad right-angled wing, often concave lateral margin; margin with strong spines and crenulations; gill rakers on first arch 5-7 upper, 19-26 lower; measurements (% SL): head length 33-42%, head depth 14-17%, rostral projection length 11-12%, snout length 15-16%, mandibular barbel length 16-18%, orbit length 7-8%, interorbital width 6-7%, first free pectoral fin ray length 18-24%, first joined pectoral fin ray length 18-21%, body depth 16-21%; joined pectoral fin rays 11-13; first dorsal fin VIII spines, second dorsal fin 18-20 rays; anal fin 18-20 rays; scutes: dorsal series 25-27, supramedian series 32-35, inframedian series 23-26, ventral series 22-24; posterior scutes of supramedian series bicuspid; vertebrae 33-35
Color in life pink dorsally, white to pink ventrally, with broad bronze band laterally; fins bordered with dark red band; pectoral fin with four pink to red bands; in preservative, pale except dorsal and pectoral fins; distal half of first dorsal fin black, margin white; margin of second dorsal fin black; distal half of pectoral fin black, margin white
Distribution
Western Atlantic from southern New England, off Georges Bank, to northern Brazil, including the Gulf of Mexico, the Florida Keys, and the Bahamas
Occurs throughout the Gulf of Mexico
Habitat Associations
Depth range 179-914 m
Biology
Maximum known size 190 mm SL
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2018-10-12. Resilience: Medium (Preliminary K or Fecundity.).
References
Longley and Hildebrand 1941 (as P. longispathum)
Teague 1961 (as P. longispatha)
Miller 1967b
Richards and Miller 2002b
Eschmeyer, W.N. (ed.) (2003) Catalog of fishes. Updated database version of March 2003. Database dump. Catalog databases as made available to FishBase in March 2003.
Patzner, R.A. (2008) Reproductive strategies of fish. pp. 311-350. In Rocha, M.J., A. Arukwe and B.G. Kapoor (eds). Fish reproduction: cytology, biology and ecology. Science Publisher, Inc. Oxford. 631 p.
De La Hoz-M, J., J. Motta and J. Paramo (2016) Length-weight relationships for 36 deep sea fish in the Colombian Caribbean Sea. J. Appl. Ichthyol. 32:1356-1359. DOI: 10.1111/jai.13217
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