SHELLS. 451 



PLATE XLI. Figs. 11, 12. 



TELLINA NOVM OALEDONI^, Baird. 



Shell small, pure white, smooth, nearly shining though very finely 

 concentrically faintly striated, as if from lines of growth, rounded 

 subtrigonal, solid, insequivalve ; posterior margin shorter than 

 anterior ; beaks rather prominent and whiter than the rest of the 

 shell ; ventral margin rounded ; white within, not ventricose ; 

 fold rather indistinct. 



Length (transverse) 4 lines. 

 Height 3^ lines. 

 Hab. New Caledonia. 



Approaches in general shape and appearance to Tellina robusta 

 of Hanley. 



PLATE XLI. Fig. 13. 

 TELLINA BIFAEIA, Baird. 



Shell elongated, narrow, thin, moderately convex, insequilateral 

 white ; ventral edge rounded in the middle ; anterior side much 

 longer, its extremity rounded, obtuse dorsal edge rather 

 sloping ; hinder extremity short, with a truncated acumination ; 

 flexure distinct ; ligament rather prominent ; valves curiously 

 striated ; anterior and posterior extremities subimbricately circu- 

 larly striated, the centre of the valves beset with minute numerous 

 decussated strite, not extending to the ventral edge, which is 

 marked with oblique, distinct striae alone ; teeth very small ; 

 white within, somewhat iridescent. 



Length 9 lines. 



Breadth 5^ lines. 



Hab. K"ew Caledonia. 



Eesembles very much T. pura of H. Adams, from the Gulf of 

 Suez. 



G G 2 



