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PYRAMIDELLIDAE


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Eulimella subtilis (Watson, 1886)

Description: Shell small, very elongate and slender, up to 8 whorls. Protoconch (Type B) coiled, of 1 whorls, set on teleoconch with axis inclined at about 110 to teleoconch axis.. Teleoconch whorls slightly convex, smooth, without axial or spiral sculpture apart from irregular axial growth lines. Aperture teardrop-shaped, columella without plaits. Shell colourless transparent becoming opaque white with age.

Size: Up to 3.5 mm in length.

Distribution: In Australia, known from Darwin, NT, Torres Strait, Qld, and NSW. Given the widespread occurrence in Australia it probably also occurs in tropical waters to the north of Australia.

Habitat: Intertidal and subtidal, down to 145 m. Very uncommon.

Comparison: This is very similar to Eulimella hasta, but differs in size and distribution.

Fig. 13: Off Long Reef, NSW, in 26 m (C.300540. Outer lip broken). Fig. 1 Entire shell Fig. 2 Protoconch. Fig. 3 Protoconch

 

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