150 



GO^GBYLIA—DITHYRA. 36. 



Pallida. 

 11. 



ovata. 

 12. 



zag brown lines ; the lieart-shaped impression is deep, elongated, 

 and finely striate longitudinally. 



Venus testa trigono-cordatd, antice productd, costis trsnsve rsis pural- 



lelis obsoletis confertim reticulatis, areola leevi. 

 Shell triangular heart-shaped, produced at the anterior side, with 



obscure transverse paralled ribs which are crossed by fine close 



longitudinal lines, and the areola smooth. 

 Tab. nost. 10, fig. 5 

 Mus. nost. Found at Dawlish. 



Shell about an inch long, and nearly two broad, thin, semitrans- 

 parent, of an ivory or yellowish-white color without marks, with 

 somewhat irregular and rather obscure transverse rib like stride, 

 crossed by fine longitudinal lines; beaks prominent, pointed, a little 

 curved ; both the slopes quite smooth : the margin thin, with the 

 notches visible on the outside. 



Venus testa ovato-trigond, costis longitudinalihiis transversim squa- 



mosis, area convexd decussatd sine labus. 

 Shell oval-triangular, with longitudinal ribs which are transversely 

 scaly, the anterior slope convex decussate and without lips. 

 Tab. nost. 9, fig. 3. 

 Venus ovata. Pennant, Zool. iv. p. 206, tab. 59, fig. 3. 



Montagu, Test. Brit. p. 120. 

 Linn. Trans, viii. p. 85, tab. 2. fig. 4. 

 Turton, British Fauna, p. 158. 

 Dorset Catal. p. 35, tab. 1, fig. 15, 



