MOLLUSCA OF INDIA. 409 



inhabit Pegu, but has since occurred to me in the neighbourhood of 

 Ava, I was inclined to suppose that A. humilis was also derived 

 from that neighbourhood. Lately, however, during a hurried 

 search at Akoukfoung, I had the good fortune to find some livino- 

 specimens of what, I have little doubt, is the same species as 

 that whu-h I first obtained, the only difference being the absence 

 ot any sculpture except on the tumid portion of the last whorl. 

 From tliese specimens the above description has been corrected. 



" A. humilis resembles somewhat the 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 whorf is 

 earned back from the constriction, the distance beino- in both 

 species proportional to the length of the sutural tube fwhich is 

 shown in fig. 8, Plate CLI.]. A. humilis is farther distinguished 

 by Its longer constriction, by the descent of the mouth and the 

 greater tumidity of the last whorl. The colour, as in many 

 AlyccEi, IS probably not quite constant, some specimens bein^ 

 white and translucent, 



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

 01 another Alycmis [no doubt vulcani, W. T. B. (A^o. 50, 1906 4.4 

 Coll. Blf. & B.M.], which resembles the singular little Dariiliuo^ 

 A. plectocheilus in the form of the peristome. Tlie specimen 

 being imperfect and weathered, I delay publishing a description of 

 It m the hopes of succeeding in obtaining better specimens before 

 doing so. 



Alyc^us kengtdngensis, n. sp. (Plate CXXXIX. figs. 6, 6 a.) 

 Locality. Kengtung, Shan Frontier. No. 3037 G-A Tn]! 

 {Colonel li. Woodthorpe, R.E.). " ^^• 



Shell somewhat depressedly turbinate and umbilicated ; sculpture- 

 fane and rather close costulation on the upper whorls, much 

 stronger next the sutural tube, and near the base of this peculiarly 

 distant costae very strong ; colour white ; spire conoid ; suture 

 impressed sutural tube long; whorls 4, the last swollen, next 

 sutural tube sharply constricted, then suddenly expanding into a 

 rounded ridge crossing the whorl crescentically and expandinsr 

 gradually forwards to the peristome; aperture oblique, horizon tt 

 ally oval, subangular above; peristome double, simple. 



Size : maj. diam. 5-25 ; alt. axis 2*4 mm. 



Only one specimen occurred among the shells collected by my 

 old assistant, but the characters of Alyccei are so distinct, and 

 such being the case in this instance I do not hesitate to describe it. 



Altc^tjs kurzianus, Theobald & Stoliczka. (Plate CLI. figs. 7, 



Theobald J A. SB. xli. pt. 2 (1872), p. 330, pi. xi. fig. 2 ; id. 

 Cat. Supp. 18. 6, p. 40 ; G. Nevill, Hand-list, 1878, p. 293 



2k 2 



