Volvatella pyriformis Pease, 1868
|Maximum size: 11 mm (Kay,
This species has a thin, transparent shell that narrows into a spout
posteriorly. The animal is pale orange flecked with darker orange.
We've never found Volvatella
pyriformis. Kay (1979) reports it from algal mats on solution
benches and from the green alga Caulerpa.
It was first reported from Hawaii in Kay, 1961 (as Arthressa evansi).
The shell on page 64 of Kay & Schoenberg-Dole, 1991 seems more
strongly inflated with a more constricted apex than the shell of the
live animal on page 65 suggesting that it may be from Volvatella vigourouxi, instead (or that it became greatly distorted, with drying). The drawing from the original Tahiti description of V. pyriformis can be seen on the Sea Slug Forum.
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