416 LAND AND FKESH WATER 



Shell ovsLtelj g\ohos.e,2>^>'f oration hidden ; sculpture: distant well- 

 marked costulatiou OD the upper whorls, much Jiner next the sutured 

 tube and a little closer, no costulation in front of it ; colour w^hite, 

 neither 8])eeimen very fresh; spire moderately high; suture im- 

 pressed, the tube very short and small ; whorls 4, well rounded, 

 the last slightly swollen in front of the sutural tube ; aperture 

 circular ; peristome double, inner circular, continuous, the outer 

 with a strong jiange-lUe exj^)ansion on columellar margin, expanded 

 and reflected on outer and upper margin. 



Size : maj, diam. 3-2 ; alt. axis 2*4 mm. 



There is considerable similarity in this species with that of A. 

 thompsoni, of Munipui", particularly in shape, but the Shan Hills 

 form is more compactly globose, and the costulation twice as strong, 

 the reflection of the outer lip on the columellar side is not quite 

 similar, and the costulatiou next sutural tube is altogether 

 difi'erent. 



Altc^us GKArHTCTJS, W. Blf., var., Theobald. 



Theobald, J. A. S. B. xxxix. pt. 2, 1870, p. 398, pi. xviii. fig. 3 ; 

 id. xx.xi. pt. 2, 1862, p. 137. 



Original description : — " Beside the typical form described by 

 Mr. Blanford from Arrakan and Pegu, an interesting variety also 

 occurs in the Shan States, for the identification of which I am 

 indebted to Mr. Blanford. It differs from the type in having a 

 shorter, more subtile, and globose shape, and by the ribs on the 

 whorls heing slightly more distant from each other and very sharp. 

 There are also some of the stronger ribs traceable on the constriction 

 near the aperture. The shell is pure white with the apex and the 

 adjoining whorl beautifully pale yellow. I have given an illustra- 

 tion of this variety in order to facilitate comparison." 



This description defines the species well, which is so decidedly 

 distinct from A. graphicus ; it is worthy of specific distinction 

 and I name it : — - 



Altc^us (Cyclortx) graphiaeitjs, n. sp. (No. 21.06.4.4 Blf. 

 Coll. B.M.) (Plate CXLVI. figs. 7, 7 a.) 



There are four specimens in the Blanford collection, and I have 

 come across two others in a pill-box. The distant strong costulation 

 is very striking, with 4 very distinct ribs behind the aperture as 

 shown in fig. 7 a. 



Altcjetts (Ctcloktx) maegaeita, Theob. MS. 



Hanley & Theobald, Conch. Ind. (1870) pi. xcvii. fig. 7, is A. 

 sculptilis, Bs. ; id. pi. xcv. fig. 10 is evidently a S])ecies of Cijcloryx — 

 Hanley writes, p. 39 : " Although very near graphicus, differs in 

 form, sculpture, and colouring '" ; Theobald, Cat. Supp. 1876, p. 40. 



Locality. Shan States. 



