365 — 



Pages 



■J'uRRiTELi A conmuinis R'sso. 



23, 20 



* — gradatajfomais v. Sch. 1S5 



* — iinbncataria Lk 185 



"" — myurelloides Cossm. 



n. sp 184 



— planispira Nyst 185 



— triplicata Brocc 23, 29 



— ungulina L 23 



» __ Woodi Spey 180 



'rvCHOCAUDIA (S. -G.) 292 



— cor L 29/i. 



TYLOTIA (nov. Gen.) 129 



'Tympanotus conjunctus Desh. 171 



* — Lebescontei Tourn. ... 173 

 ■"'I'yphis cuniculosLis Nyst 167 



* — gaasonsis Tourn 167 



" — intergymnus Cossni. 



n. sp 166 



* — tripleras Grat .167 



UGARTEA (nov. Subg.) 205 



Unio Moreleti Desh 16, 30 



— pictorum auct 15, 30 



— Ravoisieri Desh 15 



UxiA Sandbergeri Toui-n 154 



\'E\EnicARDiA anti'Tuata L... 30 



— crassidens Rr. et S.... 75 



— rudis Huniphr 75 



X'enerut'is irus L 279 



— Romani CaJc 2S1, 283 



— serrata Rve 279 



Venus borealis Chemn... 77, 93 



* — Brocchii Desh 265 



— buc<irdium Boim 262 



— cancellata D. Ch 113 



— castanea Say 83 



— compressa L 99, 262 



— compressa Mtg 93, 103 



— crassatella BIv 78 



— danmonia Mtg 77 



— ferrôensis Boit.... 262, 26i 



— gibba Sand 282 



— incrassata Brocc 81 



* — i.slandica Brocc 265 



— islandica L 262 



— latisulcata Conr 262 



Pages 



Venus mercenaria Penn. 26i, 2()i- 



— minima Mtg 77 



— Montagui Dillw 103 



— oi'biiiculata Mtg. 262 



— Petagnœ Costa 81 



— .scotica Mat. et Rack. 



70, 76, 77 



— subcordata Mtg 77 



— subrhomboidea Allg.... 76 



— sulcata Da C 76, 77 



— sulcata Mtg. 83 



— - li-iangularis Mtg 262 



— veiTucosa L 77 



VEPHFXULA (nov. Subg.)... 130 



Vestcomya (G.) 302 



— Adamsi Sm 302, 30'i- 



— aliiida. Dali 304 



- allantJca Sm 30't 



— brevis Sm 304 



— cretacea Sm 305 



— Dalli Verr. et Bush. 



30 1, 305 



— donacia Dali 305 



— gigas Dali 305 



— indica Sm 305 



-- lœvis Pels 305 



— ilepta Dali.... 303, 305, SOS 



— ovalis Dali 305 



— pacifica Sm 305 



— piliUa Dali 305 



— Smithi Dali 306 



— Stearnsi Dali 306 



— suavis Dali 300 



— subquadrata Dali 304 



— ticaonica Dali 306 



~ venusta Dali 306 



Vesicomyacid^ (Fam.)... 259, 30t 



\0EUTA mercatoria L 20, 22 



— miliaria L 21 



— rustica L 21, 22 



*\'ur.G()CEfiiTHiuM inl.radentii- 



timi Desh : 168 



W AIME A (nov. Subg.l.. 124 



WooDTA (Sect.) 73 



— digitaria L 114 



Xerocrassa (Sect.) 66 



