TELLINA. 167 



LANCE-SHAPED TELLEN. 

 PL 45./. 2. Dr. Coombe. 



40. Tellina lanceolata. T. testa ovali, tenuissima, pellucida, albida, trans- 

 versim striata, anterius acuminata ; cardinis dentibus lateralibus in 

 altera valva nullis. Linn. Gmel. p. 3236. 



Shell oval, very thin, pellucid, transversely striated, and sharp pointed 



before ; hinge without lateral teeth in one valve. 

 Chem. Conch. 6. pi. 11. f. 103. 



A white shell, sometimes reddish, rounded at one 

 end, and lancet-shaped at the other ; slightly inflected 

 at the beak. Length three quarters of an inch, breadth 

 an inch and a quarter. 



Inhabits India, but is very rare. Described only by 

 Chemnitz. 



OPALINE TELLEN. 



41. Tellina opalina. T. testa ovali, pellucida, lucis reflexione et refrac- 

 tione variante, costa in utraque valva alba a cardine ad marginem ex- 

 terior em procedente. Linn. Gmel. p. 3236. 



Shell oval, pellucid, varying in different positions of light ; a white rib 



in each valve, proceeding from the hinge to the outer margin. 

 Chem. Conch. 6. pi. 12. f. 107. 



A thin, white, diaphanous species, finely striated 

 transversely, and reflecting from its surface, different 

 colours, like the interior of pearlaceous shells. A white 

 rib running from apex to margin, occasions the fore 

 part of the shell to be angular, but not inflected; hinge 

 with two teeth in one valve, and one in the other. Length 

 an inch, breadth an inch and a half. 



Inhabits the Indian Ocean. 



