Shorefishes of the Greater Caribbean online information system

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Species: Diplobatis guamachensis, Brownband Numbfish, Brownband Electric Ray

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disc oval, front convex
large eyes
stripes along disc, bars across tail base

Diplobatis guamachensis Martín Salazar, 1957

Brownband Numbfish, Brownband Electric Ray

Disc slightly oval, with moderately convex front edge; well-developed electrical organs visible as kidney-shaped mounds on either side of the head; nostrils subdivided with two openings; eyes normally developed, not covered by skin; mouth tubular, protractile, teeth entirely inside mouth when it is closed; 2 dorsal fins of equal size; outer part of inner edge of pelvic fins not joined to side of tail; male claspers not continuous with inner edge of pelvic fins; moderately stout tail with skin fold from under rear of 1st dorsal base to origin of tail fin; tail fin well developed, triangular, upper and lower lobes continuous around the tip.

Upper surface tan to golden tan, with dark brown wavy cross-lines and stripes, dark bars across the tail base; lower surface white.

Reaches 20 cm.

Lives on soft bottoms.

Depth range: 30-183 m.

The southern Caribbean.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • Data
  • Live birth
  • No pelagic larva
  • No pelagic phase
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Caribbean endemic
  • Continent
  • Continent only
  • GC endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Listed
  • Vulnerable
  • Not listed
Length Max
  • 20
Depth Range Min
  • 30
Depth Range Max
  • 183