Shorefishes of the Greater Caribbean online information system

Español  Contact

Species: Ariomma regulus, Spotted driftfish

All Families:   All Genera:   All Species:

body oval (~40% SL)
eye > snout
body silver + spots; opercle, D1 & pelvics blackis
LL 50-60; scales between eyes to pupil

Ariomma regulus (Poey, 1868)

Spotted driftfish

Body a deep (depth 39-45% SL) compressed oval; head long; snout short and blunt; eye large (> snout), covered with a fatty-tissue lid that extends to nostrils; mouth small, ends before eye, upper jaw almost completely covered by suborbital bone under eye; teeth tiny, conical, in a single row on jaws, lower teeth often with secondary points; no teeth on roof of mouth or on bases of gill arches; gill rakers slender, 7 + 6; operculum thin, with smooth edge; 2 dorsal fins that are almost not separated; first dorsal with XI long, slender spines that fold into a groove, second dorsal low, 14-15 rays; anal fin similar to second dorsal, 14-15 rays; pelvics inserted under or behind pectoral base, fold into a broad groove along belly midline; tail base short and slender, square in cross-section, with 2 low fleshy keels on base of tail fin; tail fin stiff and strongly forked; lateral line high along back, an extension forwards over eye; scales smooth, very thin and easily shed, 50-60 on lateral line; scales on head don’t extend forwards past level of pupil.

Adult: silvery to light brown, back with small dark spots; 1st dorsal, pelvics and opercles black; eyes golden. Young with 3-5 dark bars on body.

Reaches 20 cm.

Adults feed on the bottom,  mainly around the edges of the continental shelf; juveniles inshore, often around flotsam.

Depth range: 0-500 m, juveniles near surface, adults below 100 m.

New Jersey to the Guyanas.


High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Offshore
  • Offshore Only
Water Column Position
  • Bottom
  • Bottom + water column
  • Surface
  • Near Surface
  • Mid Water
  • Near Bottom
Habitat
  • Water column
  • Flotsam
  • Mud
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Planktivore
  • Data
Diet
  • Zooplankton
  • Data
  • Mobile benthic worms
  • Mobile benthic crustacea (shrimps/crabs)
  • Octopus/squid/cuttlefish
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • West Atlantic Endemic
  • Greater Caribbean non-endemic
Regional Endemism
  • Continent + Island (s)
  • All species
  • Extends North of GC
  • Island (s)
  • GC non-endemic
  • Continent
Residency
  • Resident
Climate Zone
  • Temperate (>35N)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Listed
  • Least concern
CITES
  • Not listed
Length Max
  • 20
Depth Range Min
  • 0
Depth Range Max
  • 500