Tellinidae n 



Genus TELLIJVA Linne, 1758 

 Tellinai-- iuterrupta Wood PI. 15, fig. 96 



Alt., 25; length, 48 mm. Shell flattened, rounded in front; 

 posterior portion is rostrate, truncate and bent toward the right from 

 plane of shell; umbos suppressed, almost median; ligament external, 

 posterior to umbos; color grayish suffused with lavender and pale 

 brown with angular pencillings of brown; strong, elevated, concentric 

 sculpture; two cardinal teeth and two lateral plates in each valve; 

 interior polished, yellowish, with white, translucent border; pallial 

 sinus deep, rounded; inner margms finely crenate. 



Tellina lineatai-' Turton PI. 15, fig. 97 



Alt., 14; length, 30 mm. Shell flattened; white or pink; white 

 form has an anterior epaulette of pink; surface iridescent, with 

 numerous, minute concentric striations, thm epidermis; umbos small, 

 sharp; ventral and anterior margins rounded, posterior portion 

 wedged-shaped, slightly flexuous, margin almost straight; color of 

 interior and exterior alike; a wide, confluent pallial sinus almost 

 touches anterior muscle scar; margins smooth. 



The two forms are found together in sandy bottoms. 



Subgenus AIU'OPAGIA (Leach MS.) Brown, 1827 

 Tellina linteai-^ Conrad PI. 15, fig. 98 



Alt., 8; length, 18.5 mm. Shell small, flattened, white, anterior 

 and ventral margins rounded; posterior area rostrate; margin straight, 

 truncate; umbos pointed, a little behind center; concentric sculpture 

 of delicate slightly lamellar ridges; cardinal and lateral teeth in right 

 valve, cardinals only in left; interior smooth, muscular impressions 

 polished; pallial sinus rounded, confluent; margins thin, smooth. 



TelUiia alternatai25 Say PI. 15, fig. 99 



Alt., 27; length, 45 mm. Shell flattened, rounded anteriorly, 

 slightly narrowed and keeled posteriorly; umbos pointed, not prom- 

 inent; external ligament; sculpture of concentric, deeply impressed 



^22 Gr., telHnc, a kind of shellfish; Lat., interrumpo, interrupted, continuity 



broken. 

 ^23 Lat., linea, line. 

 1-* Lat., linteus, linen. - 

 ^-'' Lat., alternare, to alternate. 



