Sandkr^er Yeistem. d TOieiu Syst m Hassan . 



Taf.EIX. 



LitkArstv. Jlielmhirrdt inMämz 



WieskcLerv, Verlag icllreidal tNiednar . 



JB.jyblith. 



/ GardioLa conc6ntnca,v3uck sp. 



/ J/hcula. unLoniformis / /SanS 



3 cultraia, lÄ 



-^ tenuiarata , id . 



S. securißrmis , (loldf 



6' tumida , Sandb. 



7 Jfucula irepicidtrata , Satidb. 



S ZedcL tumida, id. 



S yiu^iUa cornuta. , id . 



W. Myalina tenuLötriatd, id 



// fimbriata i id. 



/i crassd, id. 



13. Hoplor/ü/tilus crassus, Sandb. 



14-. Micula. dispar, id. 



/S. IcpidiZ, (foldf. 



/6 cre/iatü- lamellosa, tSoLiid. 



/?. Actinodesma malleiforme , id. 



18 Ptfrima clathrata,; id. 



