LBIN^A.— Plate XI. 



Species 72. (Mus. Ilanley.) 



Lnis^A EXiLis. Lim. siihfusiformi, angusta, elongatd, 

 fumoso-corned, substnatd ; spird elongatd, acu- 

 ininatd ; anfractihits qiiatnor aitenuatis ; anfractii 

 ultimo angiiste ovato, supra apcrturam elevato; 

 ajierturd brevi, angusta, lahio interna ad medium 

 unipUcato ; lahio externa prope inargimm castaneo 

 fasciato. 



The narrow Limn^a. Shell rather fusiform, narrow, 

 elongated, smoky horn-coloured, slightly striated ; 

 spire elongated, acuminated ; whorls four, at- 

 tenuated ; last whorl narrowly ovate, raised above 

 the aperture; aperture short, narrow, inner lip 

 with a single plait in the middle ; outer lip banded 

 with chestnut near the margin. 



Lea. Transactions of the Philosophical Society. 



Limnma umbrosa, var., Haldeman. 



Hub. Ohio. 



This appears much too narrow and straight-sided 

 for L. umbrosa. 



Species 73. (Mus. Hanley.) 



L1MN.EA VENTRicuLARis. Lim. testd eleganter fusi- 

 formi, semipellucidd, corneo-rubescenti ; spird pro- 

 ductd, attenuatd, anfractibus quotum; attenuatis, 

 convexius(mlis, ultimo angustiusculo ; aperturd 

 elongatd, suhaurifomii ; columelld tortuosd, re- 

 ciirvd, labio exlemo posticH tumido, rotunda. 



The ventricose Limnma. Shell elegantly fusiform, 

 semi-pellucid, reddish-horn coloured ; spire pro- 

 duced, attenuated, whorls four, attenuated, rather 

 i;onvex, the last rather narrow ; aperture elongated, 

 subauriform ; columella tortuous, recurved; outer 

 lip tumid posteriorly. 



IvrsTER. Conchylien Cabinet, Martyn and Chemnitz. 



Hidj. Isl. of Formosa. 



A very distinct and elegant form. 



Species. 74 (Mus. Hanley.) 



Limnma Hookeri. Lim. testd subovatd, fused, rubes- 

 centi, subopacd ; spird longitudine mediocri, anfrac- 

 tibus angulatis, scalatis ; anfractu ultimo sub- 

 cylindraceo, brevi, post columellam excavato ; aper- 

 turd oblongd, antice subtruncatd ; labio inta-no re- 

 flexo, columelld validd, reflexd ; labio externa 

 postice rotundatim angulato, medio rectiusculu. 



Hooker's Limn.sa. Shell subovate, brown, reddish, 

 rather opaque; spire of middle length, whorls 

 angular, in steps ; last whorl rather cylindrical, 

 short, excavated behind the columella ; aperture 

 oblong, anteriorly slightly truncated ; inner lip 

 reflected, columella strong, reflected ; outer lip 

 posteriorly roundly angular, rather straight in the 

 middle. 



Reeve. Proc. Zool. Soc, 1850, p. 49. 



Hob. Thibetian Himalaya. 



Species 75. (Mus. Hanley.) 



Lisra.EA canalis. Lim. testd semi-globosd, patuld, 

 fused, pallide rubescenti, spiraliter et subdivari- 

 catini striata. ; spird brevissimd, anfractibus tribus, 

 parvis ; anfractu idtimo magna, lato ; aperturd 

 maximd, lahio externo posticH ad suturam elevato, 

 late expianso. 



The canal LimnjEa. Shell semiglobose, patulous, 

 brown, pale reddish, spirally and rather divergently 

 striated ; spire very short, whorls three, small ; 

 last whorl large, broad ; aperture very large, 

 outer lip raised posteriorly at the suture, broadly 

 expanded. 



DupuY. Jlollusques de la Prance. 



Hah. France. 



This species differs from our Limnwa auricularia 

 in the elevation of the expanded outer lip at the 

 suture. 



