Shorefishes of the Greater Caribbean online information system

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Species: Dipturus bullisi, Bullis' Skate, Lozenge Skate

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disc center: only thorns - 1 pr nape
top uniform; bottom darker
inconspicuous pores under snout
tail thorns: 1 row 12-15 + 1 between Ds

Dipturus bullisi (Bigelow & Schroeder, 1962)

Lozenge Skate, Bullis' Skate

Disc rhomboidal, with sinuous front margins, 1.34X wider than long, rear edges gently convex; snout moderately elongate (length before eye 19-20% of TL), its tip firm, with a stout cartilage; pectoral fin rays separate from snout; eyes on top of head, with spiracles immediately behind; nostrils a little in front of mouth, with front lobes from nostrils forming a curtain between them and mouth; pelvic fin with 2 distinct lobes connected by membrane, rear one large; 2 small dorsal fins at rear of tail, similar in size & shape, rounded tips, close together (1/2 length of 1st dorsal base apart); tail narrow, 46-50% TL, with a pair of lateral skin folds low down, along entire length; tail fin as an upper fold confluent with and behind the second dorsal, its base = base of 2nd dorsal; top of disc free of denticles; ventral side with denticles at end of snout and in a narrow band along inner 60% of front edge of disc; 3 widely spaced thorns around eyes (2 at front, 1 at rear), 1 thorn on nape, none others on center of disc; tail with 1 central row of 12-15 large thorns, 1 thorn between dorsal fins.

Upper surface uniform light brown; lower surface of disc, pelvics and tail dark brown; mucous pores on underside of snout & behind mouth darkly pigmented, inconspicuous.

Reaches 77 cm

Depth range 183-724 m

Lives on soft bottoms

Gulf of Mexico to French Guiana.

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  • Marine
  • Marine Only
  • Offshore
  • Offshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Bathydemersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
Egg Type
  • Benthic
  • Data
  • No pelagic larva
  • No pelagic phase
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent only
  • Extends South of GC
  • GC endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Data deficient
  • Listed
  • Not listed
Length Max
  • 77
Depth Range Min
  • 183
Depth Range Max
  • 724