166 



Tellina Irus. Tel. testd ovatd aut ohovatd, crassd {in adultis), 

 subventricosd, sub<equilateraU, impolitd, extus intusąue albidd, con- 

 centrice rugulosd; rugis interruptis minimis, confertissimis, sub- 

 elevatis ; margine ventrali magis minusve arcuato ; dorsali anties 

 convexo et subdeclivi, postice convexiusculo, elongato et declivi; 

 latere antico paululum breviore, rotundato ; postico inferiie angu- 

 lato ; lunuld {in adultis) parvd, profundd; ligamento infosso ; 

 costd umbonali subobsoletd ; dentibus satis magnis. Long. 1*10; 

 lat. 1-40 poli. 



Hab. ? Mus. Cuming, Walton. 



Evidently a perforating species, and allied to the Petricola ochro- 

 leuca of Lamarck, the true Tellina f vagilis of Linnseus's own coUec- 

 tion. 



