SO 
68.—Triangular heart-shaped, with numerous sloping 
glossy transverse ridges, which seem crenulated from 
being crossed by crowded fine rufous lines, whitish or 
pale brown, with more or less distinct darker rays, the 
beaks much recurved and the slope nearly smooth ; lu- 
nule sunken, elongated, heart-shaped, and finely striated 
longitudinally. 1...1¢. Most sandy coasts. 
V.Patuipa. Turt.B. p. 150. t. 10. f. 5.—F. p. 448. 
—Triangular-heart-shaped, produced anteriorly, thin, 
semitransparent, uniform white or yellowish white, 
with rather irregular and somewhat indistinct transverse 
rib-like strie, crossed by fine longitudinal lines ; beaks 
prominent, pointed, a little curved; slopes quite smooth ; 
margin thin, with the crenulations visible externally. 
1..,.2. Dawlish. 
V. Ovata. Pen. 4. p. 206. ¢. 59. f. 3.—Mont. p. 120. 
Inn. T.8. p. 85. t. 2. f. 4.—Lam. 87.—Dor. Cat. p. 
35. t. 1. f. 15.—D. p. 171.—Turt. C. D. p. 239.— 
Turt. B.p. 150. ¢.9. f.3.—CyYTHEREA O. F. p. 445. 
—Oval-triangular, subequilateral, moderately convex, 
brownish white, with longitudinal grooves, rendered 
sealy by the transverse striz ; beaks acute and ratner 
nearer the subangulated and flattened anterior slope . 
impressions obsolete. 4...4. WW. and Irish Coasts. 
