526 DR. L. PFEIFFER ON NEW LAND-SHELLS. [DcC. 8, 



reflexum, dextro sublate patens, superne cucullatim dilatatum et 

 subdeflexum. Operc. planiusculum, calcareum, marginibus an- 

 fractuum infundibuliformiter elevatis. 



Diam. maj. 18, min. 14, alt. 5 mill. 



Hub. In insula Labuan (Mr. H. Low). 



13. Pterocyclos lowianus, Pfr. (1 b). T. late umbilicata, 

 subdiscoidea, tenuiuscula, subtiliter striatula, sericina, fulva, 

 flammis saturate castaneis ammne picta ; spira planiuscula, vertice 

 submucronato ; anfr. A\, convexi, regulariter accresc.entes, ultimus 

 teres, antice paululum descendens ; apertura diagonalis, circularis ; 

 perist. duplex; internum brevissime porrectum, juxta anfr. conti- 

 guum vix sinuatum; externum latere sinistra angustissimum, dextro 

 breviter patens, superne dilatatum et protractum, vix concavum. 

 Operc. prcBcedentis. 



Diam. maj. \a\, min. \2\, alt. 5^ mill. 



Hab. In insula Labuan {Mr. H. Low). 



^^ 14. PupiNA MERiDiONALis, Pfr. (4 a). T. oblonga, tenuiuscula, 

 (<'kt^^ levissime striatula, subpellucida, succineo-cornea ; spira sensim in 



conum acutiusculum attenuata ; svtura levis, simplex; anfr. 7, 

 summi convexiusculi, sequentes planiores, penuUimus longus, ulti- 

 mus antice subascendens, basi axin excedens ; apertura obliqua, 

 circularis, bicanaliculata ; callus parietalis arcuatus, latere dextro 

 in linguam triangularem, sinistro in linguam latam transverse 

 truncatam abiens ; perist. subincrassatum, breviter expansum, cum 

 lingua sinistra directione parallela recedens. 



Long. 13, diam. C mill. 



Hab. North Australia. 



15. PuPiNA PLANiLABRis, Pfr. (4 b). T. subrimata, oblongo- 

 cofiica, tenuiuscula, sub lente striatula, subsericea, carneo-fuscula ; 

 spira conica, apice acntiuscula ; sutura simplex ; anfr. 7, con- 

 vexiusculi, penultimus longus, latere apertura subplanulatus, ulti- 

 mus brevis, descendens ; apertura subverticalis, circularis, lineariter 

 bicanaliculata ; callus parietalis planus, subsolutus, latere dextro 

 breviter ligulatus, sinistro infra medium oblique resectus ; perist. 

 plane expansum, utrinque extus cum Unguis junctum et infra rimam 

 umbilicalem cristulam e canali punctifoi'mi exeunt em for mans. 



Long. 12^, diam. 5|- mill. 



Hab. North Australia. 



5. Descriptions of Ten New Species of Land-Shells, from 

 THE Collection of George French Angas, Esa. By 

 Dr. Louis Pfeiffer. 



giP^ 1. Helix incltnata, Pfr. (387 J). T. subclause perforata, co- 



noideo-depressa, solida, carinata, superne conferte rugoso-striata. 



