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Species: Ctenogobius pseudofasciatus, Slashcheek Goby

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flank: 5 black blotches
oblique stripe: mouth to mid preopercle
lower preopercle edge black
D2 11; A 12
male D1- 3rd spine often elongate
C base - oval dark spot

Ctenogobius pseudofasciatus (Gilbert & Randall, 1971)

Slashcheek Goby

Body elongate, slightly compressed; eyes large, towards front, narrow between them; tongue slightly emarginated to distinctly emarginate or bilobed; teeth in upper and lower jaws in several rows, outer enlarged; large recurved canines on mid-side of lower jaw in male; front of roof of mouth without teeth; gill rakers short, triangular 0 + 4-5; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VI (3rd spine elongate in males) + I, 11(10-11); length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 12 (11-12); pectoral fins 16-18 (13-18); pelvic fins I, 5, united forming a disk; scales rough 33 (29-36) in lateral series, no scales under pectoral fin base; no lateral line.

Body color light tan, patterned in dark brown to black; sides with five blotches along midline; back crossed by several diffuse bars not reaching the midline of body; side of head with a blotch of pigment extending from the lower rear corner of the preopercle forward toward the front of the eye; an oblique stripe from corner of mouth to preopercular angle; pectoral fin with 4-5 vertical bars; caudal fin with 7-8 vertical bars; pelvic fins dusky; anal fin with small, black, discrete spots at the base of the membranes between the rays in males, absent in females; 1st dorsal with four dark stripes, the outermost wide and reaching to the edge of the fin; 2nd dorsal fin with three dark stripes.

Reaches 5.8 cm.

Habitat: Rivers and estuaries.

Depth: 1-15 m?

Florida to the S Caribbean.

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  • Brackish
  • Freshwater
  • Non Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Estuary
  • Freshwater
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Detritivore
  • Omnivore
  • Data
  • Benthic microalgae
  • Detritus
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Benthic
  • Data
  • 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
  • 5.8
Depth Range Min
  • 1
Depth Range Max
  • 15