TELLEN. x 97 



ner, and the external ligament at one end. The sur- 

 face is very smooth and glossy, but showing distinct 

 lines of growth. It is nearly white on the outside, 

 but within it is beautifully salmon-tinted. Its length 

 is half an inch or less. 



Lutricola alta, Conr., Lu-trik'-o-la al'-ta. Shell 

 round oval, wrinkled at one end, marked with tine 

 and distinct lines of growth. Hinge-teeth central, 

 lio-ament external, depressed, behind the umbones. 

 Pallial sinus large, color white, but yellowish inside 

 between the muscle scars. Southern; length two 

 inches. 



The Bodega Tellen, Tellina Bodegensis, Hinds, 

 Tel-li'-na Bo-de-gen'-sis, shown in Fig. 169, has a 

 very prettv shell, smooth, thick and heavy, and about 

 two inches in length. The surface is polished, of a 



Fig. 169. 



creamy-white color, and is marked with fine concen- 

 tric lines. The posterior end of the shell is narrow 

 and somewhat bent to one side. The ligament is 

 external, the hinge teeth very small, and the pallial 

 sinus very long and narrow. Old specimens show a 

 marked tendency to thicken the shell from the inside. 

 It is found at points along the whole coast, but 

 chiefly to the northward. 



