TELLINA. 97 



tagu Test. p. 65. Maton and Racket, in Lin. Trans. 



viii. p. 55. Dorset Cat. p. 30. t. 7. f. 4. Wood's 



Conch.?. 186. t. 40. f. 1. 

 Tellina rigida. Solanders MSS. Pulteney, Dorset Cat. 



p. 30. Donovan, iii. t. 103. 

 Venus crassa. Gmelin, p. 3288. 

 Venus, No. 62. Schroeter Einl. iii. p. 176. 

 Pectunculus depressior. Da Costa Brit. Conch, p. 194. 



t. 13. right hand fig. 4. 

 Lister Conch, t. 299- f- 136. Favanne, t. 48. f. O. 

 Inhabits the coasts of Guernsey. Lister. Britain. Pennant, 



&)C Normandy. Humphreys. 

 Shell nearly an inch and three-quarters long, and two inches 

 broad ; thick, heavy, and marked with crowded transverse 

 grooves, of which some at regular distances are broader ; 

 colour white or yellowish, and sometimes ornamented with 

 reddish rays ; the hinge is placed nearest the anterior end, 

 and has two teeth, of which one is bifid in each valve, be- 

 sides two other lateral teeth. 



decussata. 58. Shell sub-orbicular, with very fine 

 decussated striae, and the inside variegated 

 with purplish brown zic-zac streaks. 



Tellina decussata. Wood's Conch, p. 190. t. 43. f. 2 and 3. 



Inhabits 



Shell an inch long, and an inch and a quarter broad, rounded 

 at both, but somewhat produced at one end, and the surface 

 is finely striated transversely, and crossed by delicate longitu- 

 dinal stria? ; the colour is white, with the apex rose-co- 

 loured, and the inside marked with reddish, purplish, or 

 brownish zic-zac lines, which do not extend to the margin. 



cordiformis. 59. Shell sub-orbicular, densely 

 striated longitudinally, and very finely trans- 

 versely ; hinge with two primary teeth in each 

 valve, and the lateral teeth oblong. 



Tellina cordiformis. Chemnitz, xi. p. 20#. t. 199. f- J 94 1 

 and 1942. Wood's Conch, p. 19 1. t. 43. f. 4 and 5. 



Tellina demissa. Solander's MSS. 

 Inhabits the West Indian Seas. Chemnitz. 

 Shell about an inch and a quarter long, and not much more iu 



breadth ; strong, convex, of a dull yellowish white colour on 



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