Shorefishes of the Eastern Pacific online information system

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Species: Chriolepis tagus, Mystery goby

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elongate, flattened
eyes large, close together
body: 5-6 thin bars
lines radiate from eye

Chriolepis tagus Ginsburg, 1953

Mystery goby

Body elongate; head and body flattened; eyes large, close together; head without pores; papillae on most parts of head and nape; front nostril larger than rear nostril, both are long tubes; mouth slightly oblique, lower jaw slightly projecting; tongue broad, tip deeply indented; dorsal fin VII (none elongated) + I, 12; I, 11 anal fin rays, pectoral fins 19, fin short; pelvic fins completely separate, with branched rays, short; tail fin rounded; scales on body behind a line under end of 1st  dorsal, 4 large rough scales on base of tail fin, head and front of body scaleless.

Pattern of ~ 5-6 narrow bars on body and lines radiating down from eye.

Size: 2.2 cm.

Habitat: probably rubble and sand.

Depth: 20-40 m.

Known only from a single specimen collected at the Galapagos Islands.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
  • Rocks
  • Reef only
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • Mobile benthic gastropods/bivalves
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • No data
  • Pelagic larva
  • Benthic
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • Island (s) only
  • All species
  • Galapagos Islands endemic
  • TEP endemic
  • TEP oceanic island (s) endemic
  • Island (s)
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Data deficient
  • Listed
  • Not listed
Length Max
  • 2.2
Depth Range Min
  • 20
Depth Range Max
  • 40