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SOLECURTIDAE |
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Solecurtus divaricatus (Lischke, 1869) Description: Shape elongate, length more than twice height; umbo small, low, situated in front of midline; both ends gaping; anterior and posterior ends rounded, ventral margin straight centrally. Exterior with irregular commarginal growth ridges, with superimposed widely spaced curved, forward pointing oblique grooves, absent on anterior end, obscure on posterior end. Interior with muscle scars and pallial sinus usually defined; pallial sinus very long, reaching forward three-quarters of shell length. Hinge of right valve with 2 long, curved prongs as cardinal teeth; left valve with 1 strong prong as cardinal tooth. Ligament external, attached to low nymphs. Shell colour white. Periostracum thin, brown, usually absent from dorsal region. Size: In Australia, up to 61 mm in length. Distribution: Indo-West Pacific. In eastern Australia, as far south as Twofold Bay, NSW. Habitat: Lives buried in sand. In NSW, known from trawled specimens from down to 140 m depth. Comparison: This is distinguished from the other Solecutus species found in NSW, Solecurtus sp., by its plain white colour and subtidal habitat. Synonymy: Solecurtus leone Woolacott, 1954 is a synonym based on a specimen from near the southern limit of the range, from off Brush Island, Ulladulla, NSW. Fig. 1: Shoalhaven Bight, NSW (C.368779)
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