Shorefishes of the Eastern Pacific online information system

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Species: Prionotus horrens, Bristly searobin

All Families:   All Genera:   All Species:

head high
large eye
short snout plates
C: 3 bars of spots
pectoral 13, short, edge convex, black + clear blotch
A: 9
flank: scales smooth

Prionotus horrens Richardson, 1844

Bristly Searobin

Head deep; eye large; wide between eyes; projecting snout plates short; no transverse groove across top of head behind eyes; bony ridge under eye with 2 spines at rear; teeth on jaws and roof of mouth simple; two separate dorsal fins, X + 10-12; anal fin with 9 rays; pectoral fins relatively short, barely reaching under origin of 2nd dorsal, rear margin convex, 13-14 rays, with 2-3 enlarged free rays at bottom of fin; body with rough scales; flank scales smooth; rear flap of operculum with scales; nape scaled; lateral-line scales 93-105.

Head and body grey brown to red brown; 1st dorsal with black front 1/2, pale rear 1/2; a dark bar down rear of 2nd dorsal fin continuing down body; a broad brown band below eye to lower cheek behind mouth; pectoral fin blackish with large clear patch on outer half; tail fin with large dark spots basally and blackish longitudinal streaks on outer half forming three irregular bars.

Size: reaches 35 cm.

Habitat: trawled on mud-sand.

Depth: 7-105 m.

Southern Baja and the SW and eastern Gulf of California to Peru.

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  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Mud
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • Pelagic crustacea
  • No Data
  • Zooplankton
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Pelagic larva
  • Pelagic
  • No data
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • Continent only
  • TEP endemic
  • All species
  • 3 provinces (Cortez + Mexican + Panamic) endemic
  • Continent
  • Continental TEP endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • South Temperate (Peruvian Province )
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 35
Depth Range Min
  • 7
Depth Range Max
  • 105