CO:sCHMA\—DlTHYRA. 56. 249 



Tab. nost. II, fig. 14. 

 Tellina cornea. Linn. Syst. Nat. p. 1120. 



iimelin, Syst. p, y241. 



Ticrton, Linn. .Syst. iv. p. 197. 



Chemnitz, vi. p. 136, tab 1-3, fig. 133. 



Pennant, iv. p. 181, tab. 52, fig. 3. 



Linn. Trans, iii. p. 4-5, tab. 13, fig. 39, 40. 



Linn. Trans, viii. p. 59. 



Donovan, British Sliells, iii. tab. 96. 



Wood, Conch, p. 196, tab. 46, fig. 3. 



DiUwijn, Descript. Catal. p. 104. 



Titrton, Conch. Diet. p. 179. 

 Canliuin corneun>. Montagu, Test. Brit. p. 86. 



Tttrton, British Fauna, p. 154. 



Dorset. Catal. p. 32, tab. 7, fig. 2. 

 Cardium Nux. Da Costa, p. 173, tab. 1.3, fig. 2. 

 Mns. nost. Muddy streams, pools, and ditciies. 



Shell three eighths of an inch long, and half an inch broad, 

 horn-color or yellowish, often bright yellow round the margin, 

 faintly and irregularly striate transversely, of an oblong-globular 

 shape, with a slight appearance of angularity at the anterior side : 

 the single groove is mostly apparent, soittetimes nearly central, 

 often nearer the beaks or margin : inside rather glossy, yellowish 

 or blueish : beaks central, prominent, obtuse. 



Cyclas testd depress^ pellmiddi Ifsviuscuki a^fp/idlaiei^ati Ottiic^ lacnsiris. 

 subangttlatd, umhonibns tuberctUosis. 



Shell fiattish transparent nearly smooth equilateral and somewhat 

 angular at the anterior side, with the beaks tubercularly pro- 

 minent. 2 K 



