230 Mr. W. H. Benson on new forms of Cyclostomacea. 



12. Pupina Arulaj n. s. 



Testa imperforata, conoideo-ovata, longitudinaliter striatula, nitidis- 

 sima, fusco-rubella, apice conoideo, acuto, sutura calloso-margi- 

 nata; anfractibus 6, ultimo spiram subsequante, antice breviter 

 ascendente ; apertura circular!, angulo superiori acuto adjecto, 

 callo parietali superne lamella intrante munito ; columella pro- 

 funde incisa, canalem extus apparentem, lingua lata parietali ob- 

 tectum, callisque duobus divergentibus marginatum, exhibente ; 

 peristomate obtuso, expansiusculo, extus marginato, margine dextro 

 supra medium arcuato ; basi foYeata. Operculo ? 



Long. 9, diam. 5 mill. 



Hab. ad Yunglaw, in valle Tenasserim, raro occurrens. 



It has much affinity with P. aurea, Hinds^ the superior canal 

 being rather simulated than actually developed, and being formed 

 by an angle, at the top of the otherwise circular aperture, cut off 

 from the lower portion, in part, by the parietal lamina. 



13. Pupina artatUy n. s. 



Testa imperforata, pupiformi, ovato-acuminata, politissima, fusco- 

 cornea, translucente, vel hyalina ; spira ovato-conoidea, apice obtu- 

 siusculo, sutura callosa, lineari ; anfractibus ^\ convexiusculis, 

 ultimo i testse partem superante ; apertura verticali, circulari, 

 bicanaliculata ; peristomate obtusiusculo, margine parietali superne 

 linguam acutam, callo verticali elongato, cum margine dextro sub- 

 parallelo, marginatum, exhibente, infra cum basali canalem incisum, 

 ascendentem, extus calloso-marginatum, efformante. Operctdo tes- 

 taceo pauci-spirali, concaviusculo, sutura elevata. 



Long. 6, diam. ^\ mill. 



Hab. ad Moulmein satis frequens. 



It has some affinity with the Australian species of the genus. 



Although the following shell is not Burmese, yet as it is found 

 in the Ultra-Gangetic portions of the Bengal Provinces, which 

 are geographically a continuation of the same zoological tract, I 

 shall give it a place here. 



14. Pupina imhricifera, n. s. 



Testa imperforata, ventricose ovato -acuta, politissima, fascescente, 

 pellucida ; spira conica, apice acutiusculo, sutura leviter impressa ; 

 anfractibus Q\ convexiusculis, ultimo spiram sequante, ventri- 

 cosiori, antice subascendente ; apertura circulari, bicanaliculata, 

 peristomate pallide cameo, duplici, interno obtuso, breviter por- 

 recto, externo expanso, subreflexo, superne longe ascendente, mar- 

 gine parietali calloso linguam acutam, cum margine dextro con- 

 niventem, et callum verticalem, validum, elongatum, arcuatim 

 divergentem, cum processu labri exterioris canalem efformantem. 



