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Fissidentalium edenensis Lamprell & Healy, 1998

Description: Shape broad, expanding rapidly, moderately curved, more so towards apex. Weight solid. Aperture diameter up to 3.5 mm. Apex diameter 0.5 mm. Sculpture 17 narrow ribs at apex, with minor ribs commencing in between, creating 34 alternating large and small ribs at aperture. Transverse sculpture weak growth lines. Aperture circular. Colour white.

Size: Up to 31 mm in length.

Distribution: Global distribution unknown. Assumed to be endemic to Australia with distribution restricted to deep waters off Eden and Bermagui, NSW.

Habitat: Dredged in coarse sand at 3221050 m (Lamprell & Healy, 1998). Uncommon.

Comparison: The relatively small size (up to 31 mm) and pattern of ribs distinguishes this from similar species.

Fig. 1: East of Eden, NSW in 9601050 m (C.174457).

 

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