Species: Lythrypnus alphigena, Cocos goby
Lythrypnus alphigena Bussing, 1990
Cocos goby
Body deep and wide; head round; no 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 spine filamentous)+ I, 12 rays; I, 10 anal rays; 21 pectoral rays; pectoral rays unbranched; pelvics fused into disc; tail fin short, round, with 17 segmented rays; scales rough, none on head, nape, chest and pectoral base; ~ 37 lateral scale rows.
Grey; body with 10 narrow brown bars with dark line in center and dark edges, and wider paler interspaces; 4 brown bars across top of head; cheeks and lower head with large cream spots in a brown reticulum; fins dusky; spinous dorsal black at rear; soft dorsal with diffuse dark streaks; tail with 6 faint vertical bars.
Size: 4.4 cm.
Habitat: rocky bottoms.
Depth: 90-150 m.
Cocos Island.
High Resolution Map Download
- Salinity
-
- Marine Only
- Marine
- Inshore/Offshore
-
- Inshore
- Inshore Only
- Water Column Position
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- Bottom only
- Bottom
- Habitat
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- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- Reef only
- Rocks
- FishBase Habitat
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- Demersal
- Feeding Group
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- Carnivore
- Planktivore
- No Data
- Diet
-
- Zooplankton
- No Data
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
-
- No data
- Pelagic larva
- Benthic
- Global Endemism
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- East Pacific endemic
- All species
- Tropical Eastern Pacific (TEP) endemic
- Regional Endemism
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- Island (s) only
- Cocos Island endemic
- All species
- TEP endemic
- TEP oceanic island (s) endemic
- Island (s)
- Residency
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- Resident
- Climate Zone
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- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
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- Data deficient
- Listed
- CITES
-
- Not listed
- Length Max
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- 4.4
- Depth Range Min
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- 90
- Depth Range Max
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- 150
