Shorefishes of the Eastern Pacific online information system

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Species: Crocodilichthys gracilis, Lizard triplefin

All Families:   All Genera:   All Species:

eye: no cirrus
snout dark
iris red & black
flank - row brown & white spots
tail base white & black
C: black & yellow

Crocodilichthys gracilis Allen & Robertson, 1991

Lizard triplefin

Body long, slender; top of head smooth, except for a few weak spines along top of eye; no cirrus over eye, but extremely small papillae present; no teeth on sides of roof of mouth; dorsal fin III + XVII + 12-13, segmented rays branched except first and last 3-5 rays; anal fin I-II, 25-26; pelvic fin rays separated; lateral line in 2 straight sections, front part with 19-20 tubed scales, rear part with 17-23 notched scales; scales small, absent on head, breast, belly, and pectoral-fin base;  44-47 lateral scale rows.

Pale tan or pinkish; snout dark; iris with red and black bars; body with ~ 3 longitudinal rows of double red-brown spots, the lowest row of spots separated by white dashes along middle of side; a prominent black band, with white anterior border, around base of tail, extending onto base of fin; outer part of tail fin red, central part cream.

Size: attains 8.3 cm.

Inhabits rocky shores and steep slopes.

Depth: 3- 40 m.

Western and central eastern Gulf of California.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Reef only
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
  • Mobile benthic gastropods/bivalves
  • Sessile crustacea
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
  • Data
Egg Type
  • Pelagic larva
  • Benthic
  • No data
Global Endemism
  • East Pacific endemic
  • All species
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Continental TEP endemic
  • Continent
  • Cortez province endemic
  • All species
  • Continent only
  • TEP endemic
  • Resident
Climate Zone
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Depth Range Min
  • 3
Depth Range Max
  • 40
Length Max
  • 8.3