Tive7ity-five Nezv Species of Marine Shells. 65 



apiid umbones fere Icsvi, Jiavo tindd, postice asf^erd, tisqne ad 

 marginevi vcntralein. 



Lat. 27 mill. 



Long. 17 „ 



Hab. Bombay {Abercroinb'ie). 



A somewhat thickened shell, as T. BaltJiica (L.) ; white, 

 yellow or orange-tinted at the umboes, convex, distinctly 

 posteriorly bicarinated, the concentric lirae becoming very 

 rough and distinct at the posterior angle. 



Rare, only one or two specimens. 



Tellina (M^RA) LECHRIOGRAMMA, Sp. nov. (PI. I, f. 22). 



T. testa albida solidiusaild, donaciformi, postice abbreviatd, 

 subobliqud, antice elongatd, tmdique concentrice tenui-liratd, 

 nitidd. 



Long. 14 mill. 



Lat. 7 „ 



Hab. Bombay {Abercrombie). 



Apparently not uncommon, but mostly in imperfect 

 condition, half valves only. It is like T. pygmcsa (Phil.) in 

 shape, but of thicker consistency, pure shining white, very 

 finely concentrically lirate, posteriorly abbreviate, anteriorly 

 elongate, with some of the appearance of a Mesodesina or 

 Donacilla. 



Thracia Salsettensis, sp. nov. (PI. I, f. 24). 



T. testd pertenui, oblongd, albd, postic6 flexiwso-qiiadratd 

 etsubrostratd, antice ovato-oblongd, valvd sinistrd snbplanatd, 

 dextrd co/ivexa, valvis ambabus, prcesertivi sinistrd, plicis 

 concentricis nndanter snccinctis, postic^ fere applanatis. 



Long. 36 mill. 



Lat. 52 „ 



Hab. Bombay [Abercronibie). 



A remarkably delicate semi-trapezoid species, of which 

 numerous single valves were found, but no quite perfect 

 E 



