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CINGULOPSIDAE |
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Eatoniopsis castanea (Laseron, 1950) Description: Shell minute, moderately tall spired, spire outline straight. Protoconch of 1½ whorls, teleoconch up to about 2¾ weakly convex whorls. Surface glossy, smooth apart from weak growth lines and spiral scratches. Aperture elongate-ovate, outer lip prosocline. Inner lip thin over parietal wall, thicker below. Columella with weak, broad bulge deep within aperture (Fig. 2). Umbilicus closed, umbilical chink present. Colour brown. Size: Up to 1.3 mm in length. Distribution: Endemic to Australia. North Stradbroke Island, Queensland, southwards to eastern Victoria and Tasmania. Habitat: On algae, stones and debris in the mid- to lower littoral and sublittoral (Ponder & Yoo, 1980). Common, often abundant. Comparison: This is similar to E. voorwindei in having a bulge on the columella, but differs in having a umbilicus closed. Figs. 1, 2: Green Cape, NSW (C.354174) |
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