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Unidentified Pleurobranchid
#2
 
Unidentified Pleurobranchid #2: shell
Maximum size:  4.3 mm shell length.

Identification:  This species has a flattened, "squared off" shell with a low spire and very fine radiating striae. It resembles mature shells of Berthellina delicata but has a smaller protoconch and lacks brown staining.

Natural history:  Unidentified pleurobranchid #2 is known only from a handful of shells found in beach drift at moderately exposed to exposed sites.

Distribution:  Maui.

Taxonomic notes:  These shells differ from the shells of other Hawaiian pleurobranchids in their profile, spire height and protoconch size suggesting the presence of one more small shallow water species.

Photo:  CP: composite photo, same shell; 4.3 mm: beach drift; Makuleia Bay, Maui; fall, 1984.

Observations and comments:

Note 1:  ( )
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