List of land and freshwater animal species I2i 



LYMNAEA (sTAGNICOLA) CATASCOPIUM Say 



(t) Scotl. (Kevan, 1943). Great Slave Lake-Nov. Scot.; NE 



U.S.A. 



LYMNAEA (pseudosuccinea) COLUMELLA Say {peregrina Cless.) 



t Brit. Isl., W & C Eur. E U.S.A., SE Can. 



(mainly in hothouses). f Oreg.-Calif. 



t C & S Amer.; S. Afr. 



LYMNAEA (gALBA) CUBENSIS Pfeiff. 



t Irel., Germ, (hothouses). SE U.S.A., C & S Amer. 



LYMNAEA (STAGNICOLA) PALUSTRIS O. F. Miill. 



Brit. Isl., Eur., N. Afr., C & N Asia Alas.-Queb., Nfld., S to Arizona. 



E to Amur & Kamch. 



LYMNAEA (rADIX) PEREGRA O. F. Miill. 



Icel., Faeroes, Brit. Isl., Eur. (gener- Nfld. 



ally), N. Afr., Asia E to Baikal. 



LYMNAEA STAGNALIS L. 



Brit. Isl., Eur., N. Afr., Asia E to Alas.-Nov. Scot., S to Arizona. 



Amur & Kamch. 



LYMNAEA (fOSSARIA) TRUNCATULA O. F. Miill. 



Icel., Faeroes, Brit. Isl., Eur., Afr. Aleut. Isl., S Alas., C Canada. 



(widely), C & N Asia E to Amur & 



Kamch. 



Physidae 



aplexa (aplecta) HYPNORUM I.. 



Brit. Isl., Eur. (generally), W & N Alas.-E Can., S to Color. 



Asia E to Kamch. 



PHYSA ANCILLARIA Say 



t Germany (hothouses). NE U.S.A., E Can. W to Manitoba. 



PHYSA GYRINA Say 



t Brit. Isl. (Cardiff). Alas.-E Can., S to Alabama, Nfld. 



