L I M N iE A. 



Species 35. (Mus. Brit.) 



LiMN^A EMARGINATA. Lim. testd pi/ramidatd, fused; 

 spird elongatd, attenuatd, anfractibus laleraliter 

 compressis ; ultimo convex! ilsculo ; aperiurd brevi, 

 intus subsalmoned, labia externa subexpanso, labia 

 interna angusto, columelld rectiuscidd, subelongatd. 



The emarginated Lijin^a. Shell pyramidal, brown ; 

 spire elongated attenuated, whorls laterally com- 

 pressed, the last rather convex; apei-ture short, 

 inside a little salmon -tinted ; outer lip subex- 

 panded, inner lip narrow, columella rather straight 

 and long. 



S.\Y. Haldeman's Monog., p. 10, pi. 2. 



Eab. Miiine, U.S. 



Species 36. (Mus. Brit.) 



LiMN^A COLUMELLA. Lim. tcstd tenui, aurictilatd 

 pallide corned ; spird brevihsculd, angnstd, acu- 

 minatd, anfractibus paucis, ultimo fusiformi ; 

 aperturd valde expansd, subovatd, columelld suprct 

 medium imipUcatd, iiifr& arcuatd. 



The columellar Limn^a. Shell thin, auriculated, pale 

 horny ; spire rather short, narrow, acuminated, 

 whorls few, the last fusiform ; aperture much ex- 

 panded, subovate, columeUa single-plaited above 

 the middle, arched below. 



Sat. Haldeman's Monog., pi. 12. 



Hob. Massachusetts. 



our British Limnaea auricularia, but 

 much more graceful in form. 



Species 37. (Mus. Brit.) 



LiMNJL\ viNos.i. Lim. testd inflatd, pellucidd, fusco- 

 vinosd, strigis sparsis albidis irregularibus si(b- 

 variegatd, spird brevissimd, anfractu -ultima veiitri- 

 cosa, lata, prope suluram subangulato ; aperturd 

 lata, expansd. 



The vikocs Lim>.'.«;a. Shell inflated, pellucid, brown- 

 vinous, slightly variegated with a few whitish 

 irregular stripes; spire very short, last whorl 

 ventricose, broad, slightly angular near the suture ; 

 aperture wide, expanded. 



Adams and Angas. Proc. Zool. Soc. 



Ilab. Adelaide River. G. F. Angas. 



Species 38. (Mus. Brit.) 



LiMN.fiA CuMiNGii. Lim. testd tenuissimd, pallidd, pel- 

 lucidd, inflatd, ovato-subglobosd ; spird brevissimd, 

 anfractu ultimo expanso, subovato. 



Cl'MIKg's Limn^\. Shell very thin, pale pellucid, 

 inflated ovately subglobose ; spire very short, last 

 whorl expanded, subovate. 



Adams. I'roc. Zool. Soc. 



Bab. Australia. 



The largest of the group forming the genus named 



Amphipeplea of some authors. 



Species 39. (Fig. a, b, Mus. Brit.) 



Limn.s:a MELiiouRNENSis. Lim. testd amplissimd, ovato- 

 subglobosd, pellucidd, pallidd, spird brevissimd ; 

 aperturd lata, labia interno tenui, subpurpureo, plied 

 columellari tenui, areuatd. 



The Melbourne Limn^a. Shell very ample, ovately 

 subglobose, pellucid, pale, spire very short ; aper- 

 ture broad, inner lip thin, purplish, columellar 

 plait thin, arched. 



Pfeiffer. ? 



Hab. Melbourne, Australia. 



Species 40. (Mus. Brit.) 

 LIMN.EA Strangil Lim. testd pallidd, tenui, pellucidd, 

 ovato-subglobosd ; spird brevissimd, anfractibus api- 

 calibus minutis, penultimo lateraliler inflato, ultimo 

 magno, ventricosa, oblique declivi. 



March, 1872. 



