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Trivirostra edgari (Shaw, 1909)
young
shows young animal with shell exposed (illustrating a shell that hasn't started to develop ribs)
Photo: CP: about 5 mm: Airport Beach, Maui; April 11, 2022. |
young, slightly older
shows slightly older animal
that probably has yet to develop mature ridges (indicated by globular
profile, short papillae and slightly transparent mantle)
Photo: Jenna Szerlag: Maalaea Bay, Maui; March 7, 2022. |
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