Wedge-shells^ Venus-shells, and Cockles 1 2 i 



a pale orange tint, reddish near the beaks. The 

 animal is whitish tinged with flesh - colour; the 

 tubes speckled and the mantle- 

 edges strongly fringed ; foot large. 

 It is not a common species, but 

 it may be found on sandy shores 

 on the south and west of these 

 islands, at depths between 7 and °^^ 



15 fathoms. The Donax-like Tellin {T. donacina) 

 is triangular-oblong, compressed, somewhat glossy, 

 of a yellowish - white colour with pink rays. The 

 animal is wdiite, with the edges of the mantle finely 

 toothed, and the long slender tubes marked with 

 white along their sides. It burrows in shell-sand 

 and nullipore, between 4 and 25 fathoms. The 

 Little Tellin (T. inisilla) is very like the last 

 mentioned, but smaller, more convex, and more 

 solid. Its colours, too, are brighter, and may be 

 white, yellow, pink, or rose, with rays of deeper 

 tint. The animal is transparent white, the edges of 

 the mantle quite plain, and the siphons nearly con- 

 tiguous and equal in size, the excurrent being four 

 or five times the length of the incurrent. The foot 

 is toothed along the sides. It occurs on sandy shores 

 at depths from 3 to 85 fathoms. 



The Brittle Tellin {Gastrana frag ills) has been 

 separated by Schumacher from the genus Tellina, 

 because of its more wedge-shaped and swollen shell, 

 and because the lateral teeth of the hinge are want- 

 ing and the cardinal teeth of the left valve are very 

 unequal in size. This, the only British species so 

 separated, has a rather thin, but opaque, shell of 

 triangular form and pale yellow hue, with fine 



