Shorefishes of the Eastern Pacific online information system

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Species: Hypsoblennius maculipinna, Fin-spot blenny

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eye: 1 short branched cirrus
dark bar behind eye
front D - elongate dark blotch
back - dark + network pale spots
D & A join C
no canines

Hypsoblennius maculipinna (Regan, 1903)

Fin-spot blenny

Moderately elongate; short robust head, somewhat pointed, with convex upper profile; rear nostril with a short, pointed cirrus; a short (less than eye diameter) cirrus with several short branches over eye; no cirri on nape; teeth with blunt flattened tips, in single rows, not movable, no rear canines on either jaw; gill openings restricted to sides of body by fusion of gill cover membranes to throat; dorsal fin XII, 14 a slight notch between the spiny and soft parts; anal rays II, 16; last rays of dorsal and anal fins joined by membranes to base of tail fin.

Grey brown; head with an irregular oblique bar behind eye, connected to a blotch on cheek; upper body dark with a network of pale round blotches; midflank with a row of irregular spots or blotches; dorsal fin with a dark stripe covering its outer half along the first 3-4 spines.

Size reaches at least 6.2 cm.

Depth: 0-2 m.

Habitat: mud and sand bottoms in brackish and freshwater of coastal streams and estuaries

Costa Rica to Ecuador.

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  • Brackish
  • Non Marine
  • Freshwater
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Freshwater
  • Estuary
  • Soft bottom only
  • Mud
  • Sand & gravel
  • Mangrove
FishBase Habitat
  • Demersal
Feeding Group
  • Omnivore
  • No Data
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Benthic microalgae
  • Mobile benthic worms
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • East Pacific endemic
  • All species
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • TEP endemic
  • Panamic province endemic
  • Continent only
  • All species
  • Continental TEP endemic
  • Continent
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Listed
  • Data deficient
  • Not listed
Length Max
  • 6.2
Depth Range Min
  • 0
Depth Range Max
  • 2