28 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



9. AmoPHANTA (Hemiplecta) peeinsignis, n.sp. PL II, Fig. 5. 



Testa iraperforata, trochoidea, carinata, luteo-castanea, supra carinam 

 fusco-nigro anguste zonata, et infra suturam zona latiore albo maculata 

 picta, supra haucl nitida, infra nitens, versus medium viridi-flavescens ; 

 spira conica, ad apicem obtusiuscula, nigrescens; anfractus 7, leviter 

 convexi, striis incrementi obliquis arcuatis sculpti, ultimus hand 

 descendens, ad peripheriam acute carinatus, supra et infra aequo con- 

 vexus; apertura obliqua, angulato-lunata, opalina, in medio et ad 

 suturam nigro fasciata; peristoma tenue, margine columellari ad 

 insertionem pallide roseo, incrassato, reflexo, appresso. Diam. maj. 

 24-5, min. 22 mm.; alt. 19 mm. 



Allied to Trochonanina oxyconus, Martens, but larger, not perforate, 

 and differently coloured. The white blotches upon the dark infra- 

 sutural band are hydrophanous, as in many species of Cochlostyla. 



10. Everettia(?) peeglabea, n.sp. PL II, Figs. 7, 8. 



Testa parva, depressa, orbicularis, anguste umbilicata, fusco-cornea, 

 subtus pallidior, pellucida, nitidissima, lineis incrementi tenuibus 

 striata ; spira parum elata, ad apicem obtusa ; anfractus 5, lente 

 accrescentes, convexiusculi, infra suturam depresse marginati, ultimus 

 haucl descendens, ad peripheriam rotundatus ; apertura obliqua, lunata ; 

 peristoma tenue, margine columellari tenui, ad insertionem dilatato et 

 reflexo. Diam. maj. 8'5, min. 7 mm.; alt. 4mm. 



Mai.— Lombook, 1,500 feet (Everett). 



Until the soft parts are known, the generic position of this species 

 must remain uncertain. 



11. MiCEOCTSTis Dtakana, Godwiu-Austen. 



Microcystis Byahana, Godwin-xiusten : Proc. Zool. Soc, 1891, p. 37, 

 pi. iv, figs. 4-4<?. 



Hah. — Busan Hills, Borneo, and Lombock, 1,500 feet (Everett). 



Three specimens from Lombock agree in every respect, excepting 

 size, with Bornean examples. The largest shell, which may not, 

 however, be adult, is only 7 mm. in its greater diameter. 



12. SiTALA coLLiiir^, u.sp. PL II, Figs. 9, 10. 



Testa trochoidea, angulata, anguste rimata, tenuis, cornea, pellucida, 

 lineis incrementi tenuibus obliquis striis spiralibus minutis supra et 

 infra decussatis sculpta, sericata ; spira breviter conica, ad apicem 

 mediocriter acuta ; anfractus 5, convexiusculi, lente accrescentes, 

 ultimus in medio acute angulatus, infra convexiusculus, antice baud 

 descendens ; apertura obliqua, angulato-lunata ; peristoma tenue, 

 margine columellari ad insertionem reflexo. Diam. maj. 3 '5, min. 

 3 mm. ; alt. 3 mm. 



Sal. — Lombock, 1,500 feet. 



It is only under the microscope that the beauty of the minute 

 cancellation is observable. ;S^. angulata, Issel, and S. demissa, Smith, 

 both from Borneo, are allied species differing somewhat in form. 



