Shorefishes of the Greater Caribbean online information system

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Species: Beryx splendens, Slender Alfonsino, Splendid Alfonsino

All Families:   All Genera:   All Species:

body depth < / = 40% SL
head: 1 pr spines
pelvic I, 11-13
D 13-15
A origin under end of/behind D base
LL 69-82



Beryx splendens Lowe, 1834

Splendid Alfonsino, Slender Alfonsino

Body oval, compressed, greatest depth 33-40% of SL; head large; eye very large, (13.9-14.4% of SL), much wider than snout length; top of head with large sensory canals covered by thin skin, separated by thin ridges; 1 conspicuous sideways projecting spine on bone just under nostrils and in front of eye; mouth large, oblique, not reaching under rear edge of eye, top jaw expanded at rear; teeth small, simple; preopercle edge without spines; 1 dorsal fin, III-V (front low), 13-15; anal fin III-IV, 25-30, its origin under end of or behind dorsal fin base; pelvic I, 11-13; tail fin deeply forked; scales spiny; cheeks and opercle covered by scales; lateral line 69-82 pored scales, the last few on the tail fin.

Head, back and fins bright red; lower sides and belly silvery-pink to yellowish-pink; peritoneum black.

Reaches 70 cm.

Bottom and near bottom on the continental shelf and slope; migrate into shallow water at night.

Depth range: 25-1300 m.

Worldwide in tropical and temperate areas, except the northeastern Pacific and Mediterranean; Maine to Brazil.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Mid Water
  • Near Bottom
  • Near Surface
  • Rocks
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Water column
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Bentho-Pelagic
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Planktivore
  • Data
  • Zooplankton
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Circumtropical ( Indian + Pacific + Atlantic Oceans)
  • Greater Caribbean non-endemic
Regional Endemism
  • Also in Brazil
  • Continent
  • Continent + Island (s)
  • Extends N + S of GC
  • Extends North of GC
  • Extends South of GC
  • GC non-endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 70
Depth Range Min
  • 25
Depth Range Max
  • 1300