1S99.] GEXERA SXREPTAXIS AjSD ENNEA, 765 



Streptaxis l.etis, sp. nov. (Plate L. figs. 11, 12.) 



Testa umbilicata, depresso-ovata, Jcpvigata, striatula, vitreo-alhida ; 

 spira de2yresso-conve.va ; anfr. 5|, convexiusculi, penultimus ad 

 periplwriam rotnndatus, ultra ultimum suhtus projedus, ultimus 

 e.vcentricus, suhtus convexiusculus, po.s^ aperturam hand com- 

 presstis ; apertura diagonalis, fere semiovalis,laynelld parietaU 

 intrnnte duobusque dentihus minutis, uno basali, alio sinistrali 

 vix cohimellari, interdum carente, coarctata ; p)eristoma expansmn, 

 margine de.vtro super ne ad angidum sinnoso. Diam. maj. 

 8|, min. 6; alt. 43 mm. 

 Hah. Tenasserim (Beddome). 

 Very near S. hurmunims in form, but distinguishable from that 



and all other known Burmese species by the absence of costulatiou. 



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



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



■shell, uith a smaller umbilicns. 



Streptaxis beddomii Nevill M8. (Plate L. figs. 4-7.) 



Testa subiimhiUcata, depjresso-ovata, lamgata, striatida, iritida, 



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



convexiusculi, penultimus rotundatus, vix ultra idtimum (a had 



spectatus) proj,xtus, idtimus excentricus, basi convexus, post 



aperturam suhtus compressus, utrinque juxta peristoma constric- 



tns, in umbilico rugoso-striatus ; apertura fere semielliptiea, 



lamelld urid parietali, et dentihus 4 pjalatalihus, duo columel- 



laribus, uno basali, una dextrali coarctata ; peristoma album, 



expansum, margine dextro ad angulum sinuato. et aUquando 



in tiiberculo par vo parietali desitiente. Diam. maj. (5, mi}i. 44 ; 



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



Uab. in montibus Animalai dictis Indite meridionalis {Beddome). 



Var. major, peristomate quinquedentato, dentihus duobus in 



margine dextro, uno hasali, duobus columdlaribus. Diam. maj. 



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



Bab. baud procul a Kuttalam (Courtallam) in comitatu Tinne- 



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



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

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

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

 taxes vary so frequently in their dentition that very little depend- 

 ence can be placed on it. S. beddomii maj, however, 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. ivatsoni 

 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 margiii 

 above the tooth which is opposite the parietal lamella. 



