Evaletta lacteola (Preston, 1904)
|Maximum size: 8 mm shell
length (Kay, 1979).
has a slender, smooth shell. In shells from accretion
platforms, the apex is usually stained brownish pink. In shells from
other habitats, the apex is usually white. (Note 1)
of Evaletta lacteola
are moderately common in beach drift.
Maui, Oahu, Kauai and French Frigate Shoals: widely distributed in the Indo-Pacific.
Taxonomic notes: This species is listed in Kay, 1979 as Syrnola lacteola. It's also probably listed in Severns, 2011 as Eulimella elizabethae and Eulimella laysanensis (in our opinion, the illustrated shells are within the range of variation for E. lacteola and Kay, 1979 was probably correct in synonymizing Turbonilla elizabethae and Turbonilla laysanensis with that species).
composite photo, two shells; largest 5.8 mm: left--beach drift,
Hookipa, Maui; fall, 1988: right--beach drift, La Perouse Bay, Maui;
Observations and comments:
1: Stained and white shells appear
to be otherwise identical, supporting lumping the two color forms. In
addition, shells of other species embedded
in accretion platforms often develop a similar stain. Perhaps, the
animal is concentrating the minerals that are responsible?