Shorefishes of the Eastern Pacific online information system

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Species: Lythrypnus lavenbergi, Lavenberg's goby

All Families:   All Genera:   All Species:

body: 10 narrow pale bars + wide dark interspaces
pale bars - 12 central rows dark dots
D 14; A 9
Cocos Is

Lythrypnus lavenbergi Bussing, 1990

Lavenberg'S Goby

Body slender, compressed; head 32.4% SL; eye length 9.5% SL; snout shorter than eye; no crest along top of head and nape; head without pores; papillae around mouth, on cheeks and operculum and over eye; front & rear nostrils tubular; mouth oblique, reaches to under front edge of eye; each jaw with wide-spaced, curved canines (6 above, 4 below) outside a wide band of tiny, pointed teeth; tongue pointed; 8 gill rakers; dorsal fin V (1st spine filamentous) + I, 14 rays; I, 9 anal rays; pectoral 20 rays, reach to anal fin origin; pelvics I,5, fused into disc with small front border; tail fin short, round, with 17 segmented rays; body scalation not known.

Preserved fish brown; body with 10 narrow pale bars (each with a thin dark vertical line down center) between base of pectoral fin and base of tail fin; head with 2 oblique pale bars behind eye across nape, another short one between those on preopercle, 4 bars above and between eyes, 2 bars under eye, interspaces paler than bars at front, snout and lips with irregular blotches; no spots on cheek or operculum; vertical fins dusky; soft dorsal and middle of tail fin with diffuse bars, some dark dots along base of soft dorsal; paired fins with dark bases.

Size: 2.6 cm.

Habitat: rocky bottoms.

Depth: 137-146 m.

Known from a single fish collected at Cocos Island.

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  • Marine Only
  • Marine
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Reef associated (reef + edges-water column & soft bottom)
  • Sand & gravel
  • Rocks
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
  • No Data
  • Zooplankton
Egg Type
  • No data
  • Benthic
  • Pelagic larva
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s) only
  • Island (s)
  • TEP endemic
  • TEP oceanic island (s) endemic
  • Cocos Island endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Depth Range Min
  • 137
Depth Range Max
  • 146
Length Max
  • 2.6