Shorefishes of the Eastern Pacific online information system

Español  Contact

Species: Pteromylaeus asperrimus, Barred eagle ray, Rough eagle ray, Roughskin bull ray

All Families:   All Genera:   All Species:

disc: wide diamond
head pointed
red-brown + ~8 white bars
tail very long, no dorsal or ventral skin folds

Pteromylaeus asperrimus (Gilbert in Jordan & Gilbert, 1898)


Rough eagle ray,     Barred eagle ray,     Roughskin bull ray


Disc rhomboidal, about twice as wide as long; pectorals pointed, convex at front and concave at rear, do not continue onto rostrum; head large, projecting well before disc, convex top, with conical snout; shallowly notched skin fold between nostrils and mouth, not joined to pectoral fin; spiracles about twice as large as eyes, partly visible from above; 7 series of teeth in flat, pavement-like plates; dorsal fin small, rounded, origin ~ twice the length of its base behind the bases of the pelvics; tail slender, about 3 times as long as disc, no tail fin, with 1 spine at base, after dorsal fin.

Upper surface reddish brown to grey, with 8-10 narrow transverse white bars that grade into spots at back of disc; white below.

Size: 79 cm disc width.

Habitat: benthic on coastal soft bottoms.

Depth: to 50 m.

Southern Baja to northern Peru.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Near Bottom
  • Bottom
  • Bottom + water column
  • Water column
  • Mud
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Soft bottom only
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
  • Sea-stars/cucumbers/urchins
  • No Data
  • Octopus/squid/cuttlefish
  • Mobile benthic worms
  • Mobile benthic gastropods/bivalves
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • No pelagic phase
  • No data
  • No pelagic larva
  • Live birth
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
  • All species
Regional Endemism
  • Continent + Island (s)
  • TEP endemic
  • All species
  • Continent
  • Island (s)
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Data deficient
  • Listed
  • Not listed
Length Max
  • 79
Depth Range Min
  • 0
Depth Range Max
  • 50