Shorefishes of the Eastern Pacific online information system

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Genus: Sphoeroides, Puffer-Fishes

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nasal organ = broad papilla with 2 small holes
D 7-9



Body oblong, thick, inflatable; head large, blunt; 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, covered to varying extent with small thin spines, sometimes with fleshy skin flaps.

A worldwide, tropical to temperate genus with about 23 species; 8 endemics occur in our region.