410 LAND AND FEESHWATEE 



6 Nattoung, West Prome (type) {coll. W. Theobald)^ 1 Pegu (coll. 

 Dr. Kurz). 



Specimen figured is in B.M. Coll. No. 2700, received from 

 Stoliczka. 



Original description : — " A. testa suhglohose conoidea, late umhili- 

 cnta, palUde mfescente ; anfractihus 4, valde convexis, suhlm'igata, 

 traiisversim distanter obsolete costeJlatis, tdtimo anfractu medio am- 

 bitus modice injiato, confertim costulato, turn valde constricto Icevi- 

 gaioque, in constrictione coi^ta obtiisa transversa inslructo, rursusque 

 exjjunsiuscido atque paulo deflexo ; apertura magna, obliqua, sub- 

 rotundata, supra obtuse angulaia, mfra anguste canaUculata ; 

 peristomate modice incrassnfo, dupUci, externa paulum expanso^ 

 labro interno 2^lic(tiulo^ labio sidAcevvjato. 



" Diam. major specim. maximi 3-5, minor 3 ; alt. 2'7 mm. 



" Hab. Nattoung in provincia Barmana, Prome dicta. 



"The peculiarly formed aperture with the lower canal and its 

 internal plication on the outer lip readily distinguish this species 

 from A. pohjgonoma, M'hich besides differs by more rounded and 

 higher whorls. Mr. Kurz brought some years ago a specimen of 

 this interesting species from Pegu ; more recently Mr. Theobald 

 collected it near Nattoung in the Western Prome district. The 

 measurements above given are those of one of the largest spe- 

 cimens." 



Altc^tjs naitoungensis, n. sp. (Plate CLY. figs. 15, 15 a.) 

 G. Nevill, Hand-list, p. 291, no. 8. 



Locality. Nattoung Hills — a single specimen. 



Shell conoid, base rather flat ; sculpture strong well-defined 

 costulation next the sutural tube, succeeded by fine distant and 

 irregular ; colour whitish, apex pinkish ; spire fairly high ; suture 

 impressed, the sutural tube long ; whorls 3|, rounded, the last 

 scarcely constricted close to the sutural tube, thence very flat to 

 the aperture ; aperture oval, subvertical ; peristome is reflected, 

 not double, but it is not quite fully developed. 



Size : maj. diam. 2-5 ; alt. axis I'l mm. 



This species in its small size and general form is like A. pu- 

 sHIhs, G.-A., of the Jaintia Hills, but a close examination shows 

 marked departure, seen particularly well, when viewed from above, 

 in the very short sutural tube of A.prisillvs — the very short cos- 

 tulated portion of the whorl and its smooth glossy surface, and 

 generally flatter apex. 



Theobald & Stoliczka (Journal A. S. B. 1872, p. 330), under 

 genus Algcceus, say : — " Of this genus several species were found 

 which were previously only known to occur in Sikkim and 

 in the Khasi and Garo Hills. A. punlhis (see above) was met 

 with at Nattoung in the Mendon district, Pegu. A. urnvla and 

 a small variety of A. ingrami at Mali in the Arakan hills ; 

 A. erispatux {== ataranensis, n. sp., see p. 426) at Maianoung and 

 near Moulmein ; at this last-named locality also occurred a large 



