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shell




 
Oscilla indica
Melvill, 1896
 
Oscilla indica
Maximum size:  2.8 mm shell length.

Identification:  This species has a conical shell with three prominent, smooth cords on each whorl. There is a single fold on the columella. The final whorl has six spiral cords. Animals are cream, blotched with gray.

Natural history:  Shells of Oscilla indica are moderately common in beach drift. Live animals can be found occasionally in tide pools and shallow rocky habitats.

Distribution:  Maui, Oahu, French Frigate Shoals and Midway: widely distributed in the Indo-Pacific.

Taxonomic notes:  This species is listed in Kay, 1979 as Hinemoa indica. However, the more elongate shells lumped with the species by Kay are actually Cingulina sp. #1 and the shell illustrated in Fig. 32 is of the latter species. It's listed at Oscilla pupu in Severns, 2011 but Oscilla pupu (Pilsbry, 1917) is probably a synonym of Ocilla indica. (John van Aarntsen, pers. com.)

Photo:  CP: Maalaea Bay, Maui; Oct. 21, 2002(?).

Observations and comments:

Note 1:  ( )
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