27 

 TELLINA. 



Tellina inasquivalvis. Lin. Trans, viii. p. 50. In^quivalvis. 



p. 75. 

 From recent comparifon we are inclined to believe our So- 



hnPinna iormerly defcribed,is only the youna^of thi^ Ipecies: 



the hinge exa6tly correfponds both in rei'pedl to the teeth, 



and in the remarkable conne6ling cartilage, that extends tlie 



whole breadth of the (hell from the umbo, which is fituated 



near to one end. If our conjecture is well founded, it is a 



proof of this fpecies being found on the weftern coaft. 



If the chara6lers of this fhell are attended to, wefliall find 

 the hinge connefts it more nearly to the Solenes than to the 

 Telkns. 



Tellina polygona Gmel. Syst. p. 3245. Polygona, 



Tellina Guinaica Cliem. Conch. X. t. 170. f, 4650 — 53. Tab. 28, f. 4. 



Shell fub-ovate, fub-orbicular, of a dirty white colour, 

 wrought with very fine concentric /Z/7>, which are crofled 

 with exceflively fine lines, not vi/ible to the naked eye : the 

 ww6o is fmall, not central, nor turning to either fide; the 

 fhorter end is fub-truncated, and fub-angulated : the larger 

 end is rounded. Infide not very fmooth, the margin uneven : 

 teeth ill one valve two, large and diftant ; in the other, one 

 very large, triangular, bifid tooth, with an approximate fmall 



D 2 one. 



