CO\CH\ Li \~ 1)1 111 YRA. 27. 99 



Shell transverse or so-newhat orbicular, (hiUisli, iiieijuilateral, 

 nidi a Hexuous plait at llie anterior side. Hinge witii two 

 teetli ill one or liolli the valn's; aiiti lateral ones which are 

 generally remote. Ligament external, on the shorter side. 



Like the Donax ami the Capsa, this genus has the ligament 

 placed on (he shorter side of the shell ; a circumstance, however, 

 by no means |>eculiar, as the same may be observed in the Am- 

 phidesina Bovsii and some of the Anatina tribe. Hut the general 

 flatness ol the shell, wilh the tlexuosity more or less observable 

 on the shorter or cartilage side, and tlie disposition ot' the teeth, 

 will at all times [iresent sullicient marks ol character. 



Tlie teeth are variable in number and position, and afford 

 much assistance in spccilic distinction. 



'A- Valvii rtltei'd hidfiitafu, oi'atce. 1-7. 

 With two teeth in one valve, and the shell oval. 



Tellix.v testii, ovatu, shits iranvcrsis crebris, ralcu allerd lineata. 



bidculald cum luteralibus, allerd unkleutatd muticu. 

 Shell oval, with crowded transverse stria;, one valve two-toothed 



wilh a lateral one each side, the other valve with a single tooth 



and no lateral ones. 



Tab. iiosf. 7, iig. L 

 Tellina lineafa. Turlon, Concli. Diet. p. 168, fig. 16. 

 Mus. iiost. Dredged in Teignmouth bay. 



Shell (Ive eighths of an inch long, and seven eighths broad 

 thin, semitransparent, white with u pale red longitudjiial stripe 



o 2 



