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Herviera sp. #2
 
Herviera sp. #2
Maximum size:  2 mm shell length.

Identification:  The shell of this species is ovate with prominent axial ribs. It has four whorls when mature and is uniformly light brown. The axial ribs increase in size gradually at the transition between the protoconch and teleoconch. That trait and its color distinguish it from Odostomella rosa. The uniform color and more numerous axial ribs distinguish it from Herviera gliriella. The animal is cream.

Natural history:  Shells of  Herviera sp. #2 are moderately common in beach drift. Live animals are found occasionally in shallow rocky habitats.

Distribution:  Maui and French Frigate Shoals.

Taxonomic notes:  The description of  H. gliriella in Kay, 1979 suggests that she may not have been distinguishing it from Odostomella rosa and Herviera cf. isidella. John van Aartsen stated that he thinks these shells are also H. gliriella. (pers. com., 2012) However, they appear to be distinguishable based on a suite of characteristics (without intergrading). So, we're leaving them as a separate species pending DNA work.

Photo:  CP: Hekili Point, Maui; April 28, 2004(?).

Observations and comments:

Note 1:  ( )
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