MOLLUSCA OF IXDIA. 417 



Altc.eus (Ctcloryx) spratti, G.-A. (Plate CLI. figs. 10, 10 a.). 

 Godwin-Austen, P.Z. S. pt. 1, April 17th, 1888. 



Loealitif. Pingoung, Shau States, 2500 ft. {Oapt. Spratt, R.A.). 

 Type specimen figured is in the B.M. Coll. 



Original description: — "Shell pyramidal, closely umhilicated ; 

 sculpture very fine close costulation, more distant between the 

 sutural tube and the peristome ; colour white with pale lemon 

 tiuiie or horny ; spire high, rapidly decreasing to apex, which is 

 rather pointed ; suture well impressed ; whorls 6^, convex, the 

 last swollen, slightly constricted at the sutural tube which is very 

 short and very thick, less than one millim. in length (tig. 10 a) ; 

 the whorl swells again to the aperture, this is circular, oblique ; 

 peristome double, slightly reflected; operculum not seen. 



" This species is quite new ; it might at first be taken for a small 

 variety of A. j^y^'c^^nidalis, Bs., from the Tenasserim Valley, but 

 the sutural tube is in that species very thread-liko and nearly 

 3 millim. in length ; the aperture is also very dift'erent in form 

 and not so simple and circular." 



With the very dilferent pyramidal form of shell as compared 

 with A. constrictus, &e., the presence of the short club-like sutural 

 tube pats this species in the section Cydoryx. On the other hand, 

 in the shell-character combined with type of sculpture, it is like 

 species in the neighbouring country to the east and south, 

 A. pi/ramidalis and A. gibhus. This points to an early develop- 

 ment of the Section in this southern area, for Ah/cceus apparently 

 spread northward and westwai'd, the conchological change of 

 form coming in on that side, first in Arakan and thence to the 

 Himalaya. It would be most interesting to get other species 

 presenting similar characters to C. spratti. 



The Shau country is not a quarter worked, and they may there- 

 fore be expected to occur. 



Alyc^os (Ctcloryx) tej^ellus, n. sp. (Plate CLV. figs. 3, 4, 4 a.) 



Locality. Shan States, only one specimen. No. 87.06.5.5 Blf. 

 Coll. B.M. (Fedden). 



Shell scarcely perforate, elongately conoid ; sculpture, none 

 visible on upper whorls, very fine and indistinct near the very short 

 sutural tube ; colour bleached ; spire high, apex small ; suture im- 

 pressed ; whorls 4|, sides rounded, nearly flat on side, constriction 

 slight close up to the sutural tube, thence short and fiat to the 

 aperture ; aperture circular, vertical ; peristome double, the inner 

 well reflected below, slightly flattened on the upper outer margin. 



Size : maj. diam. 2-9; alt. axis 2-4 mm. 



