NUOVE SPECIE TERZIARIE, ECC. 475 



SPIEGAZIONE DELLA TAVOLA T.» 



rig. l a, h, e, d — Margaritana astensis Sace. 



» 2 a, ì), e — Dreissena simplex Barb. var. pedemontana Sace. 



» Z a, h, e — Dreissena Mayeri Saec. 



» 4 ff, & — Pisidium Capellina Sace. 



■» b a, h — Cyclas Zenonii Saoc. 



» % a, h, e, d — Hydrohia suhcarinata Bon. 

 » 7 a, i (tipi), e — • Melanopsis narzolina Bon. 



» Q a, h, e, d — Melanopsis narzolina Bon. var. Matheroni Mayer. 



T ^ a, h — Melanopsis coniungens Sace. 



» 10 a, b, e — Melania propatula Saec. 



» 11 a, h, e, d — Strophostoma italiciim Saec. 



» 12 a, 6 — Limnceus antliracotheriorum Saec. 



» 13 — Limnceus bucciniformis Sace. 



