10 



MY A. 



BIVALVES. 



Linn, names. 

 IV. MYA. 



3 convexa 



4 declivis 



5 praetenuis 



6 anatina 



7 globosa 



8 arctica 



Gm. Engl, names. 

 GAPER. 



Synonyms. 



Habitat. 



1 truncata 3217 abrupt 



2 arenaria 



L. t. 428,/. 269. E.M. 

 t.229,f.2. C.6,t.l,f.l. 

 P.B.Z.i,t.U. M.p.32. 

 W.p.90,t.l7,f.l,2. Britain, &c. 



Britain. 



spoon-hinge P.B.Z.4>,t.50,f.l. D.t.\7Q. 

 M.pAlMJ'l' W.p.94, 



t.24,f.7-9. — 



3221 duck C. 6,^. 3,/ 13-16. E.M. 



t.229,f.3. W.p.94. Africa. 



globular JV.p.95,t.24!,f.4<-6. v. 



3220 arctic W.p.95. North Seas. 



