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Cossmannica sp. #2
 
Cossmannica sp. #2
 
Maximum size:  5.5 mm shell length.

Identification:  The shell of this species is conical and thin with moderately inflated whorls. It is superficially somewhat similar to Pyramidella dolabrata but much smaller in both overall dimensions and protoconch. There is usually a single irregular brown spiral line on the periphery. The animal is cream.

Natural history:  Shells of Cossmannica sp. #2 are rare in subtidal sand samples. Live animals are occasionally found in sand samples from Halimeda kanaloana beds taken at depths of around 10-20 m (33-66 ft).

Distribution:  Maui and Oahu.

Taxonomic notes: 

Photo:  CP: about 5.5 mm shell length: sand sample, Halimeda kanaloana bed, Airport Beach, Maui; Oct. 29, 1998.

Observations and comments:

Note 1:  ( )
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