1862.] Contributions to Indian Malacology. 137 



Lately, however, during a hurried search at Akouktoung, I had the 

 good fortune to find some living specimens of what, I have little 

 doubt, is the same species as that which I first obtained, the only 

 difference being the absence of any sculpture except on the tumid 

 portion of the last whorl. From those specimens the above descrip- 

 tion has been corrected. 



A. humilis resembles somewhat tbe minute A. armillatus, B. but 

 differs in the very much" greater distance to which the strongly 

 marked costulation upon the tumid portion of the last whorl is car- 

 ried back from the constriction, the distance being in both species 

 proportional to the length of the sutural tube. A. humilis is fur- 

 ther distinguished by its longer constriction, by the descent of the 

 mouth, and the greater tumidity of the last whorl. Tbe colour, as 

 in many Alyccei, is probably not quite constant, some specimens being 

 white and translucent. 



"With A. humilis at Myanoung I found a single broken specimen 

 of another Alyccsus which resembles the singular little Darjiling A. 

 plectocheilus in the form of the peristome. The specimen being im- 

 perfect and weathered, I delay publishing a description of it in the 

 hopes of succeeding in obtaining better specimens before doing so.* 



3. ALTCiEUS GRAPHTCUS, 11. S. 



Testa perforata, ovato-globosa, tenuis, pallide fulva, costulis filari- 

 bus subremotis sinuatis ornata. Spira ovato-conoidea, lateribus con- 

 vexis, apice obtusula, sutura impressa. Anfr. 4, rotundati, 2 primi 

 lente, penultimus et ultimus celerius accrescentes, ultimus ad latus 

 vix tumid us, pone stricturam spatio brevissimo confertius costulatus, 

 tubulum suturale brevissimum gerens. Spatium constrictum lseve, 

 costula filiformi una medio plerurnque signatum, prope aperturam 

 tumidius. Apertura vix obliqua, majuscula, circularis ; peristoma 

 duplex ; interno breviter porrecto, continuo ; externo expanso, retro 

 relicto, ad umbilicum reflexo, perforationem partim celante. 





mm. 





inch 



Diam. maj. 



3 



or 



0.12 



,, min, 



9i 



Z 2 





0.1 



Alt. 



3 





0.12 



Apert. diam. 



n 





0.06 



* It is perhaps the same as a 



species 



since 



found in Upper Burma. 

 T 2 



