Body elongated and subcylindrical, with myotomes clearly visible. Ventrolateral skin fold, extending from the base of the pectoral fin to just beyond the rear end of this fin. Lower jaw protruding beyond upper jaw; teeth absent. Dorsal and anal fins elongated, their margins undulated. Pelvic fin absent. Body naked, except posterior third where some small cycloid scales are present but inconspicuous. Lateral line branched, with pores at ends of branches. Swim bladder absent.
silvery, with the back dark brown and the flanks and belly whitish. In some specimens, a pale brownish pigmentation appears on the flacks.
common (in the Mediterranean) 7-14 cm (max. 28 cm).
Gymnammodytes cicerelus: the ventrolateral skin fold extends from the base of the pectoral fin to beyond the anal fin. Iridescent silvery coloration, with the back bluish-grey and the flanks and belly whitish. In this species it is possible to observe a strip of quite marked dark pigmentation along the top part of the flanks and over the head.
Other Ammodytidae species: lateral line unbranched.
BIOLOGY / ECOLOGY
Feeds on zooplankton. Eggs demersal and adhesive, attaching to sand-grains. Larva are pelagic and appear from April to June.
sandy gravel bottoms between 5 and 20 m depth, with dial movements by feeding actively in the water mass during the daytime. Schooling behavior well developed.