Tellinidae 79 



Fig. 3. Trllifia agilis Stimpson 



anterior muscular impression; margins smooth. 



relliiia versicolori^o Cozzens PI. 41, fig. 298 



Alt., 8.25; length, 17 mm. Shell small, white, iridescent, some- 

 times rayed with pink; striated with fine growth lines; inequivalve, 

 shorter and slightly rostrate posteriorly; umbos not prominent; 

 dorsal margin concave posterior to umbos; external ligament; yellow 

 brown; hinge with strong right anterior lateral tooth; interior 

 polished, iridescent, engraved with extremely fine, radiate striations; 

 pallial smus confluent to withm .75 mm. of anterior muscular im- 

 pression. 



Tellina sayi Dall PI. 42, fig. 300 



Alt., 9; length, 14 mm. Shell small, white, opalescent, some- 

 times shows iridescence and concentric striation; post-umbonal 

 margin straight, ligament yellow brown; posterior angular acute; 

 anterior lateral tooth flattened; interior white, polished; pallial sinus 

 confluent, tip 1 mm. from anterior muscle scar. 



Tellina rnbricataisi L. Perry PI. 42. fig. 301 



Length, 8; width, 4.1 mm. Shell small, thin, slightly translucent, 

 with delicate glossy epidermis; oval, rostrate and moderately at- 

 tenuated posterior to the small umbos. Its color is pale pink with 

 rays and extremely minute pencillings of deeper pink, the tint be- 

 coming paler toward the margin, with the widest and most deeply 

 colored ray over the posterior rostration. The valves are sculptured 



^3*^ Lat., versicolor, versare, to change with ; color, color. 

 ^^^ Lat., rubricatus, marked with red. 



