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Miralda montuosa Laseron, 1951

Description: Shell small, spire almost straight-sided, up to 4 teleoconch whorls. Protoconch coiled (Type B), of about 2 whorls, set on teleoconch with axis inclined at more than 90 to teleoconch. Teleoconch whorls rounded, sculptured with 3 beaded spiral cords crossed by weaker axial ribs; another smooth spiral on last whorl level with top of aperture; suture deeply impressed. Aperture broad, columella with a weak tooth, sometimes only visible deep within aperture. Shell opaque white.

Size: Holotype 2 mm in length.

Distribution: Only 2 lots available: Gunnamatta Bay, Port Hacking (Holotype and another specimen); off Chinamans Beach Middle Harbour, NSW.

Habitat: One lot from beach washup, another dredged from 3.57.5 m. Rare.

Comparison: This species has more rounded whorls and is more slender than M. suprasculpta, which is much more common.

Fig. 1: Gunnamatta Bay, NSW (C.105375 HOLOTYPE).


Copyright Des Beechey 2017