mature shells, 4.9 mm
juvenile shells, 4.5 mm
Syrnola cf. subcinctella Nomura, 1936
5 mm shell
species has a glossy white shell with a narrow,
spiral brown line
above the suture. Mature shells are decapitate while
are attenuate. The animal varies from cream to dusky pink with white flecks.
shells of Syrnola cf. subcinctella are rare in beach drift but more
common in subtidal
sand samples to depths of at least 52 m (170 ft).
Live animals are
occasionally found in sand samples from Halimeda kanaloana
beds taken at
of around 10-20 m (33-66 ft).
French Frigate Shoals and Midway: probably widely distributed in the Indo-Pacific.
Syrnola subcinctella shells illustrated on-line are very similar to the Hawaiian material but include forms that are not decapitate.
CP: 4.7 mm shell length: sand sample, Halimeda kanaloana
Beach, Maui; fall, 1997.
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