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Rhizoprionodon porosus
(Poey, 1861)
Caribbean sharpnose shark
Classification: Elasmobranchii Carcharhiniformes Carcharhinidae
Reference of the original description
Memorias sobra la historia natural de la Isla de Cuba, acompañadas de sumarios Latinos y extractos en Francés. Tomo 2. La Habana. Vluda de Barcina, Havana, 2, 1–442
Memorias sobra la historia natural de la Isla de Cuba, acompañadas de sumarios Latinos y extractos en Francés. Tomo 2. La Habana. Vluda de Barcina, Havana, 2, 1–442
Image of the original description
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Rhizoprionodon porosus (Poey, 1861)
Rhizoprionodon porosus (Poey, 1861)
Synonyms / new combinations and misspellings
Rhizoprionodon (Rhizoprionodon) porosus, Scoliodon porosus, Squalus porosus
Rhizoprionodon (Rhizoprionodon) porosus, Scoliodon porosus, Squalus porosus
Description :
Citation: Rhizoprionodon porosus (Poey, 1861): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
Please send your images of "Rhizoprionodon porosus" to info@shark-references.com
Rhizoprionodon porosus (Poey, 1861), © FAO, www.fish-base.org
Rhizoprionodon porosus (Poey, 1861), © FAO, www.fish-base.org
Common names
Cazon picudo, Cazón antillano, Cazón de ley, Cazón picudo antillano, Tiburón tollo, Tollito, Tollo hocicón, 
Requin aiguille antillais, 
Atlantic sharpnose shark, Caribbean Sharpnose Shark, Sharpnose shark, Snook shark, 
Cação, Cação de praia, Cação-frango, Figuinho, Frango
Cazon picudo, Cazón antillano, Cazón de ley, Cazón picudo antillano, Tiburón tollo, Tollito, Tollo hocicón, Requin aiguille antillais, Atlantic sharpnose shark, Caribbean Sharpnose Shark, Sharpnose shark, Snook shark, Cação, Cação de praia, Cação-frango, Figuinho, Frango
Short Description
Diagnostic Features : Prenarial snout 3.3 to 4.5% of total length; upper labial furrows short, 1.3 to 2.3% of total length; total count of enlarged hyomandibular pores on both sides of head just behind mouth angle usually over 17 (9 to 19 on each side); teeth with serrations in adults; dentitions not differentiated between the sexes; total tooth rows usually 25/24. First dorsal origin usually over or slightly behind pectoral free rear tips; second dorsal origin ranging from above anal midbase to over rear fourth of its base; pectoral anterior margin usually longer than first dorsal length from . origin to free rear tip; adpressed pectoral apex reaching behind first third of first dorsal base. Posterior monospondylous precaudal centra moderately enlarged; precaudal centra less numerous than caudals, precaudals 66 to 75, total counts 136 to 159. Size moderate, males maturing at over 58 cm total length. Colour brown or grey-brown above, white below, sometimes with white spots on sides and white-edged fins. [517]
Diagnostic Features : Prenarial snout 3.3 to 4.5% of total length; upper labial furrows short, 1.3 to 2.3% of total length; total count of enlarged hyomandibular pores on both sides of head just behind mouth angle usually over 17 (9 to 19 on each side); teeth with serrations in adults; dentitions not differentiated between the sexes; total tooth rows usually 25/24. First dorsal origin usually over or slightly behind pectoral free rear tips; second dorsal origin ranging from above anal midbase to over rear fourth of its base; pectoral anterior margin usually longer than first dorsal length from . origin to free rear tip; adpressed pectoral apex reaching behind first third of first dorsal base. Posterior monospondylous precaudal centra moderately enlarged; precaudal centra less numerous than caudals, precaudals 66 to 75, total counts 136 to 159. Size moderate, males maturing at over 58 cm total length. Colour brown or grey-brown above, white below, sometimes with white spots on sides and white-edged fins. [517]
Distribution
Western Atlantic: Caribbean, including the Bahamas, south to Uruguay. The separation of this species from Rhizoprionodon terraenovae whether as a distinct species or a representative of a southern subspecies is still uncertain and pending until detailed studies are commenced. Source: www.gbif.org
Western Atlantic: Caribbean, including the Bahamas, south to Uruguay. The separation of this species from Rhizoprionodon terraenovae whether as a distinct species or a representative of a southern subspecies is still uncertain and pending until detailed studies are commenced. Source: www.gbif.org
Human uses
fisheries: commercial
fisheries: commercial
Biology
Distinct pairing with embrace [17086]. Viviparous, placental [733]. Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp.
Distinct pairing with embrace [17086]. Viviparous, placental [733]. Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp.
Habitat
reef-associated; freshwater; brackish; marine; depth range ? - 500 m [517], usually ? - 100 m [517]
reef-associated; freshwater; brackish; marine; depth range ? - 500 m [517], usually ? - 100 m [517]
Remarks
shark-references Species-ID=6116;
shark-references Species-ID=6116;
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