L 1 M N iE A. 



Species 21. (Fig. a, h, ^fus. Cum. in Brit.) 

 LimnjEa acicula. Lim. testd, parvd, corned, lutescenti, 

 IcmgitvdinalUer leviter liratd, angustd, acurninatd, 

 suhpyramidatd ; spird attennatd, anfraetibus late- 

 raliter appressis, ultimo antice suhexpanso ; aper- 

 tura breviuscidd ; labia interna aiigitsto, plied colu- 

 mellari rectiusculd. 

 The aciculate Li.mn^a. .Shell small, horny, yel- 

 lowish, longitudinally lightly ridged, narrow, acu- 

 minated, subpyramidal, spire attenuated, whorls 

 pressed up at the sides, the last a little ex])an<led 

 in front ; aperture rather short ; inner lip narrow, 

 columellar fold rather straight. 



KOKIEL. 



Hafi. Styria. 



A curiously attenuated little shell. 



Species 22. (Mus. Brit.) 



LiMJT^iA HoLBOLLii. Zi7ft. testd ovata-mbanminatd, 

 comeo-riibescenti ; spird productd, anfraclibiis 

 quatuor, rotundis, ultimo ventricoso, post columel- 

 lavi concavo ; aperturd breviiisculd, inths succinned, 

 plica columellari validd. 



HoLBOLLi's LiiMN.4:a. Shell ovately subacuniinated, 

 reddish-horn ; spire produced, whorls foiu', 

 rounded, the last ventricose, concave behind the 

 columellar fold. Aperture rather short, witliin 

 amber coloured ; columella fold solid. 



Beck. 



Hab. Greenland. 



The mouth and spire are about equal in length. 



Species 23. (Mus. Brit.) 

 LIMN.BA Vahlii. Lim. testd oblongo-ovatd, semipellu- 

 cidd, carneo-nibescenti, spird subaaiminatd, anfrae- 

 tibus quatuor, quarum tribus pan-is leviter rotundis, 

 ultimo elongato, ovato ; aperturd stibpyriformi , plied 

 columellari tortud, brevihscxdd, subspirali. 



Vahl's Limn."ea. Shell oblotig-ovate, scmipellueid, 

 reddish-horny; spire subacuniinated, whorls four, 

 of which three are small, sliglitly rounded, the 

 last elongated, ovate; aperture subpjTiform. 

 columellar fold tortuous, rather short, subsjiiral. 

 Beck. Moll. 

 Ilab. Greenland. 



Resembling Limncea HolboUii, but more ovate, hav- 

 ing the body-whorl longer in projiortion to the spire. 



Species 24. (Fig. «, b, JFus, Brit.) 

 LiMNyEA ,n:(iUl.Ai:is. Lim. testd magnd, jn/rifunni, jial- 

 lide corned, lineis albidit longitiidiiudilms inter- 

 ruptis irregidaribus strigatd ; spird ehvatd, sub- 

 attemiatd, acumiuatd, anfraetibus tribus elangatis, 

 vi.v medio inflatis, idtimo maxima, mbovato, antiee 

 expanso, subtnincato ; aperturd subpyiifonni, an- 

 tice valde expeinsd ; labia i^Uerrio sube.vpanso, plied 

 colvmellari subspirali, ekmgatd. 

 The jugulak Limn.ea. Shell large, pyriform, pale 

 horn strijiixl with longitudinal interrupted ir- 

 regular whitish lines. Spire elevated, subat- 

 tenuatcd, aciiminated, with three elongated whorls 

 very little swollen in the middle ; the last ver) 

 large, subovate, expanded and subtruncated in 

 front ; aperture much expanded in front ; inner 

 lip a little expanded, columellar fold subspiral, 

 elongated. 

 Say. Haldeman's Mon., pi. 4. 

 Ilab. New York. 



This species resembles our Limncea stagnalis, but 

 differs in proportions, and the whorls are neither so 

 suddenly expanded nor so angular as in that species. 



Species 25. (Fig. a, b, Mus. Brit.) 

 LiMN.EA SwiNHOEi. Lim.. tcstd ovcitd, fraijili, irregn- 

 lariter striald, pedlide corned; spird acuminatd, an- 

 fraetibus quatuor, convexiiisculd ; aperturd avato- 

 oblongd j tatius lemgiludinis cequante ; calu- 

 melhi valde simiatd : labro jlexuoso, in medio 

 subsin uato. 



Ma 



1872. 



