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Gari
livida (Lamarck,
1818)
Description:
Moderately compressed, fairly fragile. Shape slightly
gaping at both ends, elongate-ovate, umbo slightly behind midline;
anterior end rounded, posterior end truncate, margin angled at junction
of postero-dorsal and ventral margins. Exterior with commarginal
ridges, more pronounced ventrally and at posterior end. Interior
white or purplish pink, muscle scars well-defined, pallial line and
sinus well defined, sinus extends past midline, coincident with pallial
line ventrally. Hinge right valve with 2 cardinal teeth, 1
strongly bifid; left valve with single bifid.
Ligament external, attached to nymphs that extend beyond shell
margin. Shell colour fawn, pale cream or pink, with fawn or
purplish pink rays. Periostracum dark brown, restricted to
ventral and posterior margins.
Size:
Up
to 45 mm in length.
Distribution:
Endemic to Australia: Burleigh Heads, Qld, southwards and around
southern Australia to Albany, WA, including Tas.
Habitat:
Lives in clean sand, mainly on subtidal sand flats, down to 64 m.
Common as beach washup.
Comparison:
See G. lessoni.
Fig.
1:
Twofold Bay, NSW (C.067841)
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