Lima disalvoi Raines, 2002

Raines, Bret & Huber, Markus, 2012, 3217, Zootaxa 3217, pp. 1-106 : 44

Lima disalvoi Raines, 2002

Figures 22 A–B

Lima disalvoi Raines, 2002: p. 31 , fig. 35.

Lima species — Rehder,1980: p. 109.

Lima sp. nov. — DiSalvo et al., 1988: p. 459.

Material examined. The holotype ( LACM 2946 ) and nearly two dozen single valves (BK) .

Diagnosis. Shell small to medium in size, up to 40 mm in height, equivalve, subquadrate; somewhat thin, but not fragile. Exterior with 34–38 equally spaced radial ribs, which are low, but raised sharply and covered with low rounded squamae. Interstices with fine commarginal striae. Interior smooth except along the ventral margin, which is crenulated by the ribs. Umbones small, elevated, with an angle of ca. 80 o. Triangular ligament area somewhat large, with its height more than half of its length. Valves slightly gaping. Anterior auricle very small with 2–3 radial riblets. Posterior auricle much larger with 5–6 radial riblets. Color creamy white to pale yellow.

Remarks. Rehder (1980) was the first to recognize this species as being potentially new, but lacked fresh material and simply recorded it as ‘ Lima species’. Several years later, DiSalvo collected live taken examples, which Rehder confirmed to be the same species.

Habitat. Commonly found under rocks at 10 to 30 m, off Anakena, Easter Island.

Distribution. Lima disalvoi is currently only known from Easter Island— E1.