Shorefishes of the Eastern Pacific online information system

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Species: Stathmonotus sinuscalifornici, California worm-blenny, Cortez worm-blenny, Gulf worm-blenny

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cirri: eye only

Stathmonotus sinuscalifornici (Chabanaud, 1942)

Gulf worm-blenny, Cortez worm-blenny, California worm-blenny

Elongate, worm-like body; short, bluntly pointed head with large oblique mouth;  head swollen and mouth longer in males; rear edge of preopercle covered with skin; no cirrus on front nostril, flaplike cirrus over eye, no cirri on nape; dorsal fin XXXX-XXXXVI, 0; anal rays II, 22-26; pectoral rays 7-9.

Color highly variable, white, green, yellow, brown, or black, usually with series of white bars on dorsal fin; green or yellow variety often with one or more longitudinal rows of black spots on side.

Maximum size, 6.5 cm.

Habitat: occurs in weedy areas along rocky shores.

Depth: 0-5 m.

Southern Baja to the central Gulf of California.

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  • Marine Only
  • Marine
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom only
  • Bottom
  • Reef only
  • Reef associated (reef + edges-water column & soft bottom)
  • Submerged vegetation
  • Rocks
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Data
Egg Type
  • Benthic
  • No data
  • Pelagic larva
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • All species
  • Cortez province endemic
  • Continent
  • Continental TEP endemic
  • Continent only
  • TEP endemic
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 6.5
Depth Range Min
  • 0
Depth Range Max
  • 5