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Species: Chaunacops roseus, Northwest Gaper, Rosy Coffin-fish

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body round, uniform pink; lure all pale
sensory canal on back: ends mid body, 17-21 pits

Chaunacops roseus (Barbour, 1941)

Northwest Gaper, Rosy Coffin-fish

Body rounded, slightly compressed, tapering to a small, rounded tail; head large, globular, cuboid; eyes high on side of head, covered with a clear skin window; mouth large, strongly oblique to ~vertical; teeth small, slender, sharp; gill opening small; dorsal fin in 2 parts: 1st is a single spine modified as an angling lure in a scaleless, oval depression on snout, lure is a dense cluster of short threads like a short mop; soft dorsal on rear of body,11-12; anal fin 0, 6, pressed down rays reaching (or nearly so) end of plate at end of spine column; pectorals behind mid-body, 13 (13-15), a broad fan with a truncate edge; skin very loose, flaccid, densely covered with minute spine-like denticles that are coarse and widely spaced, enlarged in some areas on side of body; skin denticles in 2-4 rows between eye and lateral line on upper head & 6-10 rows between dorsal fin base and lateral line on body; single open lateral line from base of tail fin to head, there with prominent canals, & from chin along lower side of body, relatively few pores: main part on upper head and body ends over pectoral fin, with 9 + 17-21 pores,1 pore on tail fin base.

Top of head and chin rosy red, caudal peduncle paler; belly and lower side violet; gill opening in a red ring; inside mouth and tongue rose and violet; pectorals and pelvics red; tail fin greenish yellow, the front 1/3 of its center red.

Reaches 15 cm

Lives on hard and soft bottoms.

Depth range 900-2691m

Central and western Atlantic; New Foundland to the northern Caribbean.

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  • Marine
  • Marine Only
  • Offshore
  • Offshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Rocks
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • Transatlantic (East+West Atlantic)
Regional Endemism
  • Continent
  • Continent + Island (s)
  • Extends North of GC
  • GC non-endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 15
Depth Range Min
  • 900
Depth Range Max
  • 2691