70 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Mr. CoUett's paper/ may readily be separated from that species by its 

 well-marked tbougb closely-set lines crossing tbe carinations. It 

 appears to belong to tlie group of C. Beccanense, W. Blfd. 



17. MiCEOCTSTiNA LiTA, n.sp. PI. Y, Figs. 10, 11. 



Testa subperforata, globose -conica, tenuis, polita, nitidissima ; 

 Butura bene impressa; anfr. 5, lente accrescentes, brunnei, primus 

 pallidior, fere Isevis, reliqui microscopice undique dense spiraliter 

 striati et lineis incrementibus remotis sculpti, ultimus rotundatus; 

 apertura lunata, margine columellari subreflexo, incrassatulo. 

 Alt. 3-4, lat. 2 mm. 



Hah. — Ambagamuwa (Collett). 



Lieut. -Col. Godwin- Austen has kindly pointed out to me that the 

 microscopic sculpture of this shell is similar to that of the Microoystina 

 of the Andaman Islands, and I have thought it best to place it in 

 that genus; though the strongly-marked notch of that group is not 

 present, still the columella shows a trace of it. Under a microscope 

 faint traces of spiral sculpture are also seen on the Selix perfucata 

 of Benson. 



18. Kaliella delectabilts, n.sp. PI. V, Fig. 7. 



Testa ovato-conoidea, anguste sed perspective umbilicata, cornea, 

 nitida ; anfr. 6, convexi, sub lente microscopice transversim striati, 

 ultimus ad peripheriam carinatus, subtus inflatus ; apice laevi, sutura 

 impressa; apertura semilunata, peristomate columellari reflexo. Alt. 3, 

 diam. max. 2-8 mm. 



Hah. — Ambagamuwa, Ceylon (Collett). 



An interesting little form, easily separated from K. salicensis, 

 G. -Austen, by the greater inflation of the whorls and by its sculpture. 

 I have a specimen, which I take to be the young of this species, 

 collected at Uda Pussellawa by Mr. Preston. 



19. SiTALA PYEAMIDALIS, n.Sp. PL V, PigS. 19, 20. 



Testa parva, anguste sed perspective umbilicata, depresso-pyramidalis, 

 pallide cornea, periostraco leviter induta, apice obtusiusculo ; anfr. 7, 

 plano-convexiusculi, primi leeves, reliqui costulis spiralibus sculpti, 

 ultimus 4-6 costulis, ad peripheriam carinatus, basi convexus, radiatim 

 striatulus, nitidulus ; sutura impressa ; apertura angulato-lunata ; 

 peristoma simplex, rectum. Alt. 5, diam. max. 3'25 mm. 



Hah. — Lower Ambagamuwa, Ceylon (Collett). 



An interesting little species, depressed-conical in form, with fine 

 revolving raised lines. They appear to vary in number, ranging on 

 the last whorl from four to six, and gradually fade out on the upper 

 whorls. 



20. SiTALA oPERiEifs, n.sp. PI. V, Pig. 12. 



Testa pygmgea, elevato-conoidea, anguste perforata, brunneo- cornea, 

 periostraco brunneo induta, apice acutiusculo ; anfr. 6, sub periostraco 



1 Joiim. E. Asiatic Soc. (Ceylon Brauch), vol. xv. 



