Shorefishes of the Greater Caribbean online information system

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Species: Hoplostethus mediterraneus, Mediterranean Slimehead, Silver Roughy

All Families:   All Genera:   All Species:

spiny D base < A base
LL scales: very large, diamond shaped, spineless
opercle - no spine
gill rakers 23-26
A 10
belly scutes 9-11

Hoplostethus mediterraneus Cuvier, 1829

Silver Roughy, Mediterranean Slimehead

Body oblong, compressed; head large, with extensive skin-covered sensory canals separated by spiny ridges; eyes moderate to large; snout rounded, with a pair of forward pointing spines; mouth large and oblique; an extra bone above rear of top jaw; teeth small, simple, in bands; gill rakers 23-26, 7-8 upper; preopercle with a flat triangular spine; no large spine projecting back from top corner of operculum; anus just before anal fin; 1 dorsal fin VI weak, striated spines and 12-14 soft rays, base of spiny part shorter than anal fin base; anal fin II-III, 10 (9-10) short base; tail fin forked, with 4-8 short, spiny rays at top and bottom of its base; 9-11( 8-12) large keeled scales along midline of belly between pelvic and anal fins; body scales thin, smooth or with minute spines, easily shed; lateral line scales diamond shaped, much larger than surrounding scales, and without a small, flat, triangular spine.

Silvery, with a rosy hue; fins transparent to reddish with black margins on the caudal-fin tips and the soft dorsal fin; the inside of the mouth black, floor of the mouth pale in front of the first gill arch.

Reaches 58cm.

Depth: 100-1463 m.

Benthopelagic over soft and hard bottoms.

Indo-central Pacific and transatlantic; New Jersey to Brazil.

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  • Marine
  • Marine Only
  • In & Offshore
  • Inshore
  • Offshore
Water Column Position
  • Bottom
  • Bottom + water column
  • Mid Water
  • Near Bottom
  • Sea Urchins
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Water column
  • Mud
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Bentho-Pelagic
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Octopus/squid/cuttlefish
  • Pelagic crustacea
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
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 58
Depth Range Min
  • 100
Depth Range Max
  • 1463