dcsimg

Description

provided by NMNH Antarctic Invertebrates

Davisia cobbi, sp. n. (Figs. 9, 10.)

Shell suborbicular, white, irregularly concentrically striate; umbones large, prominent; dorsal margin sloping on both sides; ventral margin gently rounded; both anterior and posterior sides sloping abruptly; cardinal tooth in right valve small, slightly curved; anterior lateral slightly elongate, weak; posterior lateral rather broadly expanded; cardinal tooth in left valve obsolete; anterior lateral expanded, curved below; posterior lateral rather broad, elongate, straight; interior of shell pure white, shining.

Long. 2.5, lat. 2.25 mm.

Hab. Falkland Islands.

The proper position of this and the preceding genus would appear to be in the family of the Erycinidæ.

(Cooper & Preston, 1910: 114)