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Species: Bollmannia communis, Ragged Goby

All Families:   All Genera:   All Species:

eye small
no scales on cheek
Ds & top C: oval yellow oceli
top lip - no black stripe
pelvics v dark
D1 black blotch; D2 & A 13

Bollmannia communis Ginsburg, 1942

Ragged Goby

Body moderately elongate; head convex and moderately compressed; snout blunt; eyes small (diameter 8.1-10% SL); close together; mouth large; teeth in 2 rows, outer row enlarged and canine-like; front of roof of mouth no teeth; gill membranes broadly joined to body under throat, with 5 rays; dorsal fin VII (none elongate) + I, 13 (rarely 12-14); length of 2nd dorsal base > distance from 2nd dorsal base to tail fin; anal fin I, 13 (rarely 12 or 14); pectoral fin 20-23; pelvics fused to form disc, front margin of disc scalloped; tail fin lanceolate; scales large, rough; body, top of head, and nape fully scaled, lower margin of cheek lacking scales; no lateral line.

Drab yellowish brown, with median row of ~5 very faint blotches, strongest one at base of the tail fin, those not connected by a pale stripe; iris dark; no black stripe above upper lip; first dorsal with distinct black blotch (with black stripe above that in male); dorsal fins and upper tail fin with dark elipses with yellow-orange centers; pelvic fins often very dark, to black; tail dusky.

Reaches 10 cm.

Depth: 10-85 m.

Habitat: Mud bottom.

The Gulf of Mexico.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent only
  • GC endemic
  • Gulf of Mexico endemic
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 10
Depth Range Min
  • 10
Depth Range Max
  • 85