Shorefishes of the Eastern Pacific online information system

Español  Contact

Species: Peristedion paucibarbiger, Cortez searobin, Thin-bearded armored-searobin

All Families:   All Genera:   All Species:

snout plates long, parallel
bony face rim narrow, serrated, ends in spine
no rostral or nasal spines
intense red, iris yellow
barbels: chin 8 pairs, top lip 3 pairs, 3rd very long

Peristedion paucibarbiger Castro-Aguirre & García-Domínguez, 1984

Cortez searobin, Thin-bearded armoured searobin

Head and body flattened below and completely covered in a heavy armor of bony plates and spines; bony keel along side of face narrow, serrated, ends in a backward-pointing spine; snout long, depressed; no nasal or rostral spines; snout plates long, thin, parallel, a short, blunt, double-tipped spine between them; mouth barbels filamentous, divided: chin with 8 pairs, upper lips with 3 pairs, third pair much larger & thicker than others; gill rakers 26; a short preopercular spine; two spines above eye, first with one point, second serrated; the largest spine on the head behind the eye; dorsal fin divided into 2 parts, VIII + 19;  pectoral fin with main fin (11-13) plus 2 free rays below; anal fin without spines, 21; pelvic fins are wide apart, below base of pectorals, with I, 5 rays; body with 21 spiny plates in top and bottom rows, 29 plates on upper side row (first 21 with single-pointed spine, last 8 with double-pointed spine), lower side row with 25 plates (the first 23 with a simple spine, the last 2 with a double-pointed spine).

Body intense red; pupil black, iris iridescent yellow.

Reaches 8 cm.

Habitat: on soft bottoms.

Depth 60 m.

Known from a single specimen collected off La Paz, western Gulf of California.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Soft bottom only
  • Mud
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • Data
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Pelagic
  • No data
  • Pelagic larva
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • Cortez province endemic
  • Continent only
  • All species
  • Continental TEP endemic
  • Continent
  • TEP endemic
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 8
Depth Range Min
  • 60
Depth Range Max
  • 60