MONOGRAPH 



LAND & FRESHWATER 

 MOLUJSCA 



OF THE 



BRITISH I5LES. 



John W. TAYLdR. 



Itfts 13, apd 14 (double Part) embraciBg pp; 281-31S, pp. i-xx, pEontispiece, 

 , and pis. xviiii and xxiv., also TO.; 17-64. Pfic6 12/6. 



Ulshe4 Pel 



