Shorefishes of the Greater Caribbean online information system

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Species: Prionotus rubio, Blackwing Searobin

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no nasal spines
D1 no dark spot
pectoral: to end A base, oblique rear edge, dark spots/bars, lower edge blue

Prionotus rubio Jordan, 1886

Blackwing Searobin

Snout long, sloping; no spines at nostrils; no cirri over nostrils or eyes; mouth large, reaches to front of eye, opens slightly under snout, lower jaw not projecting; preopercular spine reaching past operculum; dorsal rays X, 12; anal rays 10; pectoral fin with lower rays longer than upper rays, the rear edge of the fin oblique as a result, 13-14 joined rays, fin reaching to end of base of anal fin, with 3 enlarged, free rays at bottom of fin; body scaled; membrane above opercular spine with scales; nape with scales.

Body uniform grey-brown; 1st dorsal fin sometimes with dark blotch that fades with age, without occelated outer spot; pectoral dark grey-brown, with distinct blue lower margin, inner face usually with dark spots or bars; anal fin clear; pelvics with black pepper dots; tail fin with 3 bars, outer part reddish.

Size: reaches 23 cm.

Habitat: mud-sand bottoms.

Depth: 2-212 m, usually 9-55 m.

N Carolina to the Gulf of Mexico

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Sand & gravel
  • Soft bottom only
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
  • Octopus/squid/cuttlefish
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent + Island (s)
  • Continental primarily
  • GC endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 23
Depth Range Min
  • 2
Depth Range Max
  • 212