SHORT
DESCRIPTION
Body inflatable, when not inflated, elongated and round in front, tapering toward caudal fin. Pointed short-bases, dorsal and anal fins, posterior in position. Caudal fin forked to lunated. Pectoral fin with wide base and round margin. Pelvic fin absent. Large head with blunt snout. Small mouth, jaws beak-like with two teeth in each jaw. Gill slit in front of pectoral fin base. No scales. Minute spinules on the belly and on the dorsal surface, extending to origin of dorsal fin. Two lateral lines curving anteriorly around eyes.
color :
back-brown to olive grey with irregular shaped darker brown to grey dots in various sizes. Bright silver stripe on the side and white belly.
size :
common 7-15 cm (max. 18 cm).
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DISTINGUISHING CHARACTERISTICS
Lagocephalus spadiceus: small spinules on the dorsal surface, not extending posteriorly beyond the pectoral fin margin.
Torquigener flavimaculosus: round caudal fin.
Sphoeroides pachygaster: smooth skin.
Chilomycterus spilostylus: three rooted spines, fixed in erected position.
BIOLOGY / ECOLOGY
Like other members of the family, capable when threatened to inflating its body by engulfing water or air (when taken out from the water). Feeds on benthic invertebrates. Spawning season in the summer. Eggs and larvae planktonic.
habitat :
benthic sandy and muddy to 40 m.
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