MOLL use A — .S YSTEMA TIC RE VIE W 



L A 



Fic;. 1-2.— .1, Helix pomatia ; £, Daudebardia (Helicophanta) brevipes ; r. Testacella balio- 

 tidea; U. Arion ater ; s, .shell, in D shield (tVom Lankester). 



Fig. 13.— Peltella palliolum(iJi(/i»i?(/i(?, after Ferussac). 



