TELLINIDAE 



Section Oudardia Monterosato 1885 



Tellina modesta Carpenter 



Alaska to the Gulf of California. 



425 



Modest Tellin 



Plate 31U 



% to I inch in length, elongate, moderately pointed at the posterior 

 lower corner. Surface white with iridescent sheen and with fine concentric 

 threads or grooves. These fade out at the posterior fourth of the shell, but 

 reappear more coarsely on the very posterior slope. There is a well-formed, 

 radial rib inside just behind the anterior muscle scar. Common in certain 

 sandy localities from shore to 25 fathoms. It appears that T. buttoni Dall is 

 the same species. 



Figure 87. Pacific Coast Tellins. a and b, Tellina idae Dall, 2 inches (California); 

 c and d, Tellina hitea Wood, 3 inches (Alaska). 



Section Peronidia Dall 1900 

 Tellina lutea Wood 



Arctic Ocean to Cook's Inlet, Alaska. Japan. 



Great Alaskan Tellin 



Figure 87c, d 



3 to 4 inches in length, elongate, quite compressed, and with a posterior 

 twist to the right. Worn shells chalky-white, commonly with a pink flush. 

 Periostracum in young is greenish yellow and glossy; in adults dark-brown. 

 Ligament prominent. Commonly found from beach to 2 3 fathoms. T. venu- 

 losa Schrenck 1861 is an ecologic form with brownish cracks in the shell. 



