1899.] GENi;ilA STREPTAXIS AND ENJCEA. 765 



Stueptaxis L.EVis, sp. HOY. (Plate L. figs. 11, 12.) 



7\'sia unibilicata, dq>resso-ovata, Joiviyata , striatida, vitreo-albida ; 

 sj)ira de^yrcssoconvexa ; aiifr. 65 , cunvexiuscidi, jjenullimus ad 

 ■peripheriam rotundatus, tdtra ulliiitum suhtus projeclus, tdtimus 

 excentricus, subtus ccnvexiusculus, jwst aperturam haud com- 

 prcssus ; apertura diai/oiudis, fere semiovalis, lamella parietali 

 iiitrante daobtiscjue dcutbus minuiis, uiio basalt, alio siniatrali 

 via: colu»idlari,inierdunicarente,coarclata ; peristoma expansum, 

 iiuuyine de.vtro superne ad awjidum sinuoso. Diam. maj. 

 8g, min. 6; alt. A\ mm. 

 Hob. Tenasserim (Beddome). 

 Very near S. burmanicus in t'oi'ui, but distinguishable from that 



and all other kuovvu Burmese species by the absence ol" costulatiou. 



Three specimens were collected by Col. Beddome. A near ally is 



/S. sinuosus Pfr. from Cochiuchiua, but that is a much broader 



shell, with a smaller umbilicus. 



Stbeptaxis beddomii Nevill MS. (Plate L. figs. 4-7.) 



Testa subumbilicata, deprtsso-ovata, la'viijata, striatula, nitida, 



albido-coriiea ; spira parum exserta, sutura impressa ; anfr. 5, 



cotivexiuscidi, j^enultimus rotundatus, vix ultra ultimum (a basi 



spectatus) piroji'ctiis, idlimus excentricns, basi convexas, post 



aperturam subtus compressus, utrinque juxta peristoma conslric- 



tus, in umbilico rugoso-striatus ; apertura fere semieUiptica, 



lamella una parietali, et dentibus 4 palatalibus, duo columel- 



laribtis, uno basali, uno dextrali coarctata ; peristoma album, 



expansum, margiae dextro ad angulum sinuato, et aliquando 



in tuberculo parvo parietali desiiiente. Diam. maj. 0, ndn. 4g ; 



alt. 3 mm. (Figs. 4, 5.) 



Bab. in montibus Auimalai dictis Indite meridiomilis {Beddome). 



Var. major, peristomute quinquedentato , dentibus duobus in 



marqine dextro, uno hasali, duobus columellaribus. Diam. maj. 



7, min. 5 ; alt. 3| mm. (Pigs. 6, 7.) 



Hab. haud procul a Kuttalam (Courtallam) in comitatu Tinue- 



velly, ad alt. 4000 ped. {Beddome). 



This species is near !S. luatsoni, W. & H. Blanf., but is 

 distinguished by having only one parielal lamella ; the teeth, too, 

 are differently disposed in the mouth, but Southern Indian Strep- 

 taxes varv so frequently in their deniition that very little depend- 

 ence can be placed on it. /S'. beddomii may, how ever, be recognized 

 by having the proximal tooth on the columellar margin nearly half- 

 way down, and both of the columellar teeth and the basal tooth are 

 simple, equal in size, and nearly equidistant ; whilst in /S. tvatsoni 

 there is often a small columellar tooth near the body-whorl, and a 

 much larger elongate tooth, which is often more or less bifid, on 

 the distal portion of the columellar margin. 



The larger variety of S. beddomii from Tinnevelly is chiefly 

 distinguished by having an additional tooth on the right margin 

 above the tooth which is opposite the parietal lamella. 



