Shorefishes of the Eastern Pacific online information system

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Species: Exerpes asper, Sargassum blenny

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elongate, very compressed
snout long, pointed
D1: III-IV long spines
D2 - 2 ocelli

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Exerpes asper (Jenkins & Evermann, 1889)

Sargassum blenny

Elongate, compressed; snout long, pointed, upper profile straight; no cirri on head; lower jaw projecting; teeth in jaws biserial with larger outer series; roof of mouth with teeth on center but not sides; operculum with a distinct spiny projection;  dorsal fin III- IV + XXIV- XXV, 0-2, front 3-4 spines in a high finlet well separated before rest of fin; anal rays II, 17-20; lateral-line scales about 40.

Green with midlateral white stripe from snout to caudal fin base (may be broken into series of spots); a pair of ocellated dark spots on rear half of dorsal fin.

Maximum length, 6.5 cm.

Habitat: common among sargassum weed or eelgrass.

Depth: 1-10 m.

Central Baja and most of the Gulf of California.


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Species Data Create Report Export as Word File Export as Excel File
Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
Habitat
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
  • Rocks
  • Reef only
  • Submerged vegetation
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
Diet
  • Sea-stars/cucumbers/urchins
  • Soft corals/hydroids
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
  • Data
  • Mobile benthic gastropods/bivalves
Egg Type
  • No data
  • Benthic
  • Pelagic larva
Global Endemism
  • All species
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Continent only
  • Continental TEP endemic
  • Cortez province endemic
  • TEP endemic
  • Continent
  • All species
Residency
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
IUCN Red List
  • Listed
  • Least concern
CITES
  • Not listed
Length Max
  • 6.5
Depth Range Min
  • 1
Depth Range Max
  • 10