1. Hydrocena (Georissa) saritta (Benson). 



Hydrocena (Georissa} saritta (Benson), A. M. N. H. ser. 2, viii, 1851, 

 p. 188 (as Cyclostoma) ; Pfeiffer, Mon. Pneum. i, p. 314 (as Cyclo- 

 stoma) ; H. & T., C. I. pi. 117, fig. 2 (as Hydrocama). 



Original description: Testa subimperforata, ovato-conica, liris 

 spiralibus crebris, sulcis angustis divisis, munita, ferrugineo-albida, 

 apice rubente, sutura bene impressa, apice obtuso ; anfractibus 4 

 valde convexis; apertura vix obliqua, ovata, | longitudinis iequante, 

 peristomate acuto, expansiusculo, marginibus disjunctis, columel- 

 lari superne angulato, pariete calloso. 



Alt. 2, diaru. 1'25 mm. 



Hob. Cherra Poonjee, Garo Hills. 



2. Hydrocena (Georissa) liratula, Stoliczka. 



Hydrocena (Georissa) liratula, Stoliczka, J. A. S. B. xl, 1871, pt. 2, 

 p. 157, pi. 6, fig. 6. 



Original description : Testa globoso-corrica, solida, imperforata, 

 carneo-luteola; anfractibus 3-3|, convexis, sutura profunda sim- 

 plici junctis, priino apicem subobtusum formante mammillato, 

 laevigato, luteolo vel rubescente, caBteris supra (infra suturam) 

 paululum depressiusculis, spiraliter liratis, liris acutis, simplicibus 

 i'ere arquidistantibus, in anf. penultimo 6-7, in ultimo 9-10, basi 

 convexa, centraliter minute multistriata ; apertura semilunari, 

 altitudine fere spiram sequante, baud dilatata ; labro simplici, 

 curvato, intus striato, labio incrassato, albido, aduato, intus recti- 

 usculo, laevi. Operculum testaceum, tenue, diaphanum, latiuscule 

 semilunare (nucleo excentrico), striis incrementi rugulosis vestitum, 

 intus ad nucleum appendice tenui, longo, lateraliter sub marginetn 

 columellarem projiciente, instructum. 



Alt. 2-2, alt. ult. anf. ad aperturam fere 1, diain. maj. 1*8, diain. 

 min. l - 5 mm. 



Aperture : diam -7 mm. 



Hob. Damotba, near Moulmein. 



Animal sordide rubescente albidum, rostro lato, nigricante ten- 

 tuculis brevissimis, \dx projicientibus, latis, inedio fere conHu- 

 entibus, oculos parvos supra, ad basin et paulo lateraliter sitos, 

 gerentibus ; pede breve, subovato pallido. 



" It is mostly allied to the Khasi hill species G. saritta, 



Bens., but is more globose and a little more numerously spirally 

 ribbed " 



3. Hydrocena (Georissa) illex (Benson). 



Hydrocena (Gcorissa) illex (Benson), A. M. N. H. ser. 2, xvii, 18oG, 

 p. 231 (as Hydrocena} ; PfeilFer, Mon. Pneum. ii, p. 161 (as Hy- 

 drocena) ; H. & T., C. I. pi. 117, fig. 4 (as Hydrocena). 



Original description : Testa vix perforata, ovato-acuta, minutis- 

 sime striata, spiraliter confertim tenuisulcata, succinea, trans- 



