Species: Bollmannia macropoma, Frailscale goby, Large-eye goby


Bollmannia macropoma Gilbert, 1892
Frailscale goby, Large-eye goby
Head & body compressed; body relatively slender (greatest depth 18-22% of SL); head rounded, elongate (27-32% of SL); eye large, 8-10% of SL; mouth large, very oblique; teeth in several rows; dorsal fin VII (slightly filamentous, longest (5th) reaching 4th-5th ray) + I, 13-14; anal I, 13-15; last rays of dorsal & anal reach base of tail fin; pectoral rays 24-26, reaches beyond origin of anal fin; pelvics fused to form disc, front margin of disc scalloped, reaches anus; tail base slender (least depth 8-9.5% of SL, < eye diameter); tail fin long (~ 50% of SL), strongly pointed; scales large (25-28 rows along body), rough; 7-9 scales before dorsal fin; 1-2 medium scales on upper ½ of opercle, several on upper ½ & 1-2 small ones on lower half of preopercle; 5-6 medium to large scales on base of pectoral fin.
Color (preserved fish): Body brownish, with 3-6 dusky vertical bars on side; 1st dorsal with a large black spot on last ½ of its base; with or without faint spot on tail base; snout dusky, prominent black line on top lip; lower gill membranes, pelvics, soft dorsal & anal fins dusky.
Size: 13 cm
Habitat: benthic on soft bottoms.
Depth: 90-255 m.
The mouth fo theGulf of California; Costa Rica; the Galapagos.

High Resolution Map Download
- Salinity
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- Marine
- Marine Only
- Inshore/Offshore
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- Inshore
- Inshore Only
- Water Column Position
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- Bottom
- Bottom only
- Habitat
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- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Mud
- Soft bottom only
- Sand & gravel
- FishBase Habitat
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- Demersal
- Feeding Group
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- No Data
- Planktivore
- Carnivore
- Diet
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- No Data
- Mobile benthic worms
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
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- No data
- Pelagic larva
- Benthic
- Global Endemism
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- East Pacific endemic
- Tropical Eastern Pacific (TEP) endemic
- All species
- Regional Endemism
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- Continent + Island (s)
- TEP endemic
- Island (s)
- Continent
- All species
- Residency
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- Resident
- Climate Zone
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- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- Northern Subtropical (Cortez Province + Sinaloan Gap)
- IUCN Red List
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- Data deficient
- Listed
- CITES
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- Not listed
- Length Max
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- 13
- Depth Range Min
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- 90
- Depth Range Max
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- 255