li)0 DR. L. PFEIFFER ON NEW LAND-SHELLS. [Apiil 2;J, 



G. Descriptions of New Land-shells, in the Collection 

 OF H. Cuming, Esa. By Dr. Louis Pfeiffer. 



1. Helix uranus, Pfr. (§ 28, n. 394 a). T. subclause perfo- 

 rata, depressa, solida, conferte leviter striata, et striis incequa- 

 libus concentricis suhtiliter decussata, castanea ; spira parum 

 elevata, obtusa ; sutura levissima ; anfr. 4^, vix convexiusculi, 

 regulariter accrescentes, ultimus non descendens, carinatus, 

 basi antice subinfatus ; npertura perobliqua, rhombea, intus 

 ccerulescenti-albida ; perist, rectum, marffinibus callo subjlexuoso 



junctis, subparallelis, basali arcuato, subincrassato, ad perfo- 



rationem dilatato, adnata. 

 Diam. maj. 68, min. 57, alt. 28 mill. 

 Hab. Polillo Islands {Mr. Porte). 



2. Helix neptunus, Pfr. (§ 33, u. 594 a). T. tnediocriter um- 

 bilicata, depressa, solidula, striis incrementi et lineis spiralibus 

 subtilissime foveolata, fulva, nitidula ; spira breviter conoidea, 

 obtusula ; anfr. 5^, convexiusculi, ultimus non descendens, in- 



Jlatus, peripheria obsolete subangulatus, subtus interdum fasciis 

 nonnullis angustis rufescentibus pictus ; apertura obliqua, late 

 hinaris, intus nitide margaritaceu ; perist. simplex, rectum, 

 marginibus subconniventibus, basali non dilatato, columellari 

 leviter fornicato-rejlexo. 

 Diam. maj. 74, min. 63, alt. 41 mill. 

 Hab. Siam {M. Mouhot). 



This shell is evideiitly allied to the still unknown H. pernobilis. 

 Per. (pi. 74. f. 4 = Limax lampas, Martyn), and appears to differ 

 from that figure only by its greater size, the obsolete keel, and the 

 lower part of the peristome not being broadly reflected. 



3. Helix lactiflua, Pfr. (1276 «). T. imperforata, globoso- 

 trochiformis, tenuis, leviter striata, alabastrina, strigis jilifor- 

 mibus laeteis fere obducta ; spira turbinata, vertice obtuso ; 

 anfr. 4, context, ultimus non descendens, infra medium subcari- 

 natus et fascia opaca cretacea cinctus ; apertura fere diago- 

 nalis, rhombeo-lunaris ; perist. album, undique expansum, et 

 refiexiusculum, niargine supero antrorsum flexuoso, columellari 

 valde dilatato, adnata, intus angulatim descendente. 



Diam. maj. 24^, min. 20, alt. 17 mill. 

 Hab. New Georgia {Mr. Macgillivray) . 



4. Helix polillensis, Pfr. (n. 1306 a). T. imperforata, 

 avato-conoidea, solida, striata, castanea ; sj}ira canvexo- 

 conaidea, obtusida ; anfr. 5, modice canvexi, summi pallidi, in- 

 terdum castaneo-unifasciati, penultimus alba-strigatus, ultimus 

 epidermide crassiuscula subhydrophana fusculo-albida fere om- 

 nino ab ductus ; columella subdeclivis, parum arcuata, campressa, 

 lata; apertura obliqua, Innato-avalis, intus carulescenti-alba ; 

 perist. album vel rubellum, breviter incrassato-expansum, mar- 

 ginibus convergentibus, dextro subflexuosa. 



Diam. maj. 47, min. 38, alt. 38 mill. 



