Shorefishes of the Eastern Pacific online information system

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Species: Lythrypnus insularis, Distant goby, Island goby

All Families:   All Genera:   All Species:

lower head: red spots
dark edged blue bars: head 4, body ~ 14
pectoral 17-20

Lythrypnus insularis Bussing, 1990

Distant goby, Island goby

Body robust; head round; with fleshy crest along top of head and nape; mouth very oblique; head without pores; papillae around mouth, on cheeks and operculum and over eye; front nostril a long tube, rear nostril a raised rim; tongue round to blunt; 5-7 gill rakers; dorsal fin VI (1st  2 spines filamentous in male)+ I, 10 (9-11) rays; I, 8 (7-9) anal rays; 18-19 (17-20) pectoral rays;pectoral rays unbranched; pelvics fused into disc;  tail fin short, round, with 17 segmented rays; scales rough, body covered, ~ 29 between gill opening and base of caudal fin, none on head, nape, chest and pectoral base.

Upper half of head red, whitish below with red spots; four narrow blue bars dorsally on head; body red at front, purplish brown at rear, with 13-15 narrow blue bars.

Size: to 2.5 cm.

Inhabits rocky reefs.

Depth: 3-20 m.

Revillagigedo Islands.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Rocks
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
  • Reef only
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Planktivore
  • No Data
  • Zooplankton
  • Mobile benthic crustacea (shrimps/crabs)
  • No Data
Egg Type
  • Pelagic larva
  • No data
  • Benthic
Global Endemism
  • East Pacific endemic
  • Tropical Eastern Pacific (TEP) endemic
  • All species
Regional Endemism
  • All species
  • TEP oceanic island (s) endemic
  • TEP endemic
  • Island (s) only
  • Island (s)
  • Revillagigedo Islands endemic
  • Resident
Climate Zone
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Vulnerable
  • Listed
  • Not listed
Length Max
  • 2.5
Depth Range Min
  • 3
Depth Range Max
  • 20