Species: Sphoeroides lispus, Naked puffer, Smooth puffer

Sphoeroides lispus Walker in Walker & Bussing, 1996

Naked puffer, Smooth puffer

Body oblong, thick, inflatable; head elatively long and slender; between eyes wide and flat (distance between eyes at least 2.5x snout length); 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 7-8; no pelvic fins; no spines in the fins; tail fin edge usually straight to convex, with 10 main rays; tough scaleless skin without spines; no fleshy skin flaps.