U SHELLS. Class VI. 



mentioning, that notwithftanding the daffies honor 

 our pearl with their notice, yet they report them to 

 have been fmall and ill colored ; an imputation that 

 in general they are flill liable to. Pliny * fays, that 

 a red fmall kind was found about the Tbracian 

 Bofphorus, in a fhell called Mya 9 but does not give 

 it any mark to afcertain the fpecies. 



Dubia. M. with a rudiment of a tooth within one fhell ; 



ous. "* w **k an ova * anc ^ l ar g e hiatus oppofite to the hinge. 

 Shells brown and brittle. 

 Shape of a pijlachia nut. 

 Length of a horfe-bean. Tab. xliv. 

 Found near Weymouth. From the Portland 

 cabinet. 



P Unity lib. ix. *. 35. 



V. Its 



