186J.] DR. L. PFEIFFER ON NEW LAND-SHELLS. ] 93 



ritacea ; perist. tetiue, liliaceo-fuscum, nitidum, expansum, mar- 

 ginibus convergentibus, callo tenui jimctis, columellari dilatato. 



Diam. maj. 25^, min. 21, alt. 15 mill. 



ELab. New Georgia {Mr. Macgillivray^. 



14. Helix martensi, Pfr. (n. 1886 a). T. umbilicata, depressa, 



tenuiuscula, striatula, diaphana, unicolor castanea ; spira 



plana, medio subimmersa ; anfr. 4^ convexi, ultimus tumidus, 



juxta suturam et ad pertpheriam obsoletissime subangulatus, 



antice descendens, subtus sensim in umbilicum mediocrem atte- 

 nuatus ; apertura fere diagonalis, irregulariter rotundato- 

 lunaris ; perist. rubello-albidum, anguste reflexum, marginibus 

 convergentibus, columellari vix dilatato, patente. 



Diam. maj. 18|^, min. 16, alt. 7f mill. 



Hub. Island of Ceram {Mr. Wallace). 



15. Helix euterpe, Pfr. (n. 1062 a). T. subclause perforata, 

 depressa, solida, conferte radiato-striata striisque spiralibus 

 exilissimis utidique subgranulata, sericea, albido-carnea ; spira 

 breviter conoidea, obtusula ; anfr. 6 vix convexiusculi, regula- 

 riter accrescentes, ultimus rotundatus, supra medium obtxise an- 

 gulatus ; apertura fere verticalis, oblique lunaris, intus marga- 

 ritacea; jierist. intus albo-callosum, margine supero brevi, recto, 

 basali refiexiusculo, ad perforationem lente ascendente, vix di- 

 latato, 



Diam. maj. 28, min. 2.5, alt. 16 mill. 

 Hab. Siam {M. Mouhot). 



16. BxjLiMtTs FORTH, Pfr. (b. 1 «). T. imperforafa, ovato- 

 conica, solidida, Icevigata ; spira convexiusculo-conica, apice 

 obtusula ; anfr. 5-5-g-, sttmmi nudi, rubescentes, 2 ultimi prceter 

 fascias varias diaphanas olivaceas epidermide hydropliana pal- 



lide fuscula saturatius strigafa obducti, idtinms spiram suh- 

 cequans ; columella callosa, violaceo-nigricans, sup)erne albo- 

 plicata ; apertura obliqua, truncato-auriformis, intus ccerule- 

 scens ; perist. violaceo-nigricans, cequaliter sublate expansum, 

 margine basali cum columella extus unguium prominentem for- 

 mante. 



Long. 79, diam. 46 mill. 



Hab. Polillo Islands {Mr. Porte). 



17. BuLiMUS comes, Pfr. (n. 129 b). T. dextrorsa vel sini- 

 strorsa, subimperforata, ovato-conica, solida, striatula, nitida ; 

 spira stibregulariter conica, acutiuscula ; anfr. 7 vix convexius- 

 culi, 5 prinii carnei, supremi ad suturam nigro-marginati, 2 id- 

 timi lutei, livido-virescente rarius fasciati, strigati vel nebulosi, 

 ultimus spira paulo brevior, basi rotundatus ;' columella eras- 

 siuscula, subverticalis, alba ; apertura parum obliqua, irregu- 

 lariter semiovalis, basi subangulata, intus alba ; perist. patens 



Proc. Zool, Soc— 1861, No. XIII. 



