Shorefishes of the Eastern Pacific online information system

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Species: Evermannia zosterura, Banded goby, Bandedtail goby

All Families:   All Genera:   All Species:

female: fins checkered
D IV + I, 14-15
male: D, A & C - yellow, black, & white stripes
shoulder: 1 long flap
C base - few scales

Evermannia zosterura (Jordan & Gilbert, 1882)

Bandedtail goby, Banded goby

Body slender, elongate; head long, depressed; 1 pore between eyes; papillae on cheek and gill cover; top jaw extends well past eye; dorsal fin IV (1st  spine elongate in male) + I, 14-15 rays; anal I, 13-15 rays; 1 long flexible skin flap on shoulder in front of base of pectoral fin; tail fin long, rounded; scales - smooth, few, minute, imbedded, non-overlapping, on tail fin base.

Male olive, mottled with black above and yellow-brown below; head and body densely speckled with tiny black dots and scattered pale spots; 1st dorsal whitich with black spines; second dorsal and anal with yellowish base, broad black band, broad white margin, tail with center yellow, black bands above and below, and white upper and lower margins, pectorals and pelvics dusky; Female as in male, but dorsals and anal checkered with black, tail faintly barred, all vertical fins with pale margins.

Size: 5 cm.

Habitat: rocky tide pools.

Depth: 0-5 m.

SE Gulf of California to northern Peru.

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  • Marine
  • Brackish
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Estuary
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Soft bottom only
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
  • Mobile benthic gastropods/bivalves
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • TEP endemic
  • Continental TEP endemic
  • Continent only
  • Mexican + Panamic provinces endemic
  • All species
  • Continent
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 5
Depth Range Min
  • 0
Depth Range Max
  • 5