10. 



108 CONCHYLIA— D/THFEJ. 27. 



often mistaken for the Tellina striata : but the lateral teeth will at 

 all times distinguish it, there being two small lateral teeth in one of 

 the valves only. 



We believe that the Tellina balaustina, and the T. planata of 

 Linne, are among the numerous varieties of this species. 



*** Valvis bidentatis, suborbiculares . 10- 1 1 

 In each valve two teeth, and the shell somewhat orbicular. 



maculata. Tellina testd ovato-orbiculari cequivalvi, sti-tis tranaversis scabris lon^ 

 gitudinalibusque minutis, valvis bidentatis cum lateralibus. 

 Shell round-oval and equivalve, with rough transverse striae and 

 minute longitudinal ones, each valve with two teeth and two 

 lateral ones. 



Tab. nost. 6, fig. 7. 

 Tellina maculata. Turton, Conch. Diet. p. 173, fig. 13. 

 Tellina scabra. Chemnitz, vi. p. 102, tab. 10, fig. 94. 



Mus. nost. Taken in Bantry-bay. 



Shell an inch long, and an inch and a quarter broad, flat, thin, 

 whitish-brown covered with darker spots irregularly disposed, and 

 marked with numerous transverse raised striae, which give a rough- 

 ness to the surface, the interstices of which are crossed with minute 

 longitudinal ones; inside yellowish-white, glossy: hinge with two 

 primary teeth in each valve, and a strong remote lateral one on each 

 side. 



On the anterior side there is hardly any apparent flexuosity. 

 And Linne, in a note at p. 116, of the Systema Naturae, has 



