Shorefishes of the Eastern Pacific online information system

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Species: Sphoeroides angusticeps, Concave puffer, Narrow-headed puffer, Skin-flap puffer

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narrow & concave between eyes
tan; eyes & fins yellow
mid back - 2 black skin flaps

Sphoeroides angusticeps (Jenyns, 1842)

Narrow-headed puffer, Skin-flap puffer, Concave puffer

Body relatively elongate, the depth ~ 29% of SL; head large, blunt; narrow (14-22% of snout length) and concave between eyes; snout short; nasal organ on each side a short papilla with 2 small holes at end; eyes high on sides of head; jaws are a strong beak composed of 4 fused heavy powerful teeth with a central suture on each jaw; a slit-like gill opening in front of the pectoral fin base; a single short- based dorsal fin at rear of body; a similar-shaped anal fin with origin under or behind last few dorsal rays; dorsal and anal fins 6-9; no pelvic fins; no spines in the fins; tail fin edge usually straight to convex, with 10 main rays; tough scaleless skin, most of body without small spinules, a pair of small black skin flaps straddling midline of back, just behind level of gill opening .

Tan to light brown with pale mottlings, white on belly; a dark ring around eye; iris and fins yellowish, basal portion of dorsal fin usually brown; skin flaps on back black.

Size: attains 25 cm.

Habitat: usually encountered near the bottom in sandy areas.

Depth: 5-20 m.

Galapagos, with strays to Cocos and the coasts of Ecuador and Peru,

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  • Marine
  • Brackish
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom only
  • Bottom
  • Rocks
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Sand & gravel
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • No Data
  • Octopus/squid/cuttlefish
  • Mobile benthic gastropods/bivalves
  • Mobile benthic crustacea (shrimps/crabs)
  • No Data
Egg Type
  • No data
  • Pelagic larva
  • Benthic
Global Endemism
  • East Pacific endemic
  • All species
  • Tropical Eastern Pacific (TEP) endemic
Regional Endemism
  • Continent
  • Continent + Island (s)
  • All species
  • Island (s)
  • TEP endemic
  • Galapagos Islands endemic
  • TEP oceanic island (s) endemic
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • South Temperate (Peruvian Province )
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 25
Depth Range Min
  • 5
Depth Range Max
  • 20