330 W. Theobald & F. Stoliozka — Notes on Burmese Land Shells. [No. 4, 



Genus, Altcjeus. 

 Of this genus several species were found which were previously only 

 known to occur in Sikkim, and in the Khasi and G-aro hills. A. pusillus 

 was met with at Nattoung in the Mendon district, Pegu ; A. urnula, and a 

 small variety of A. Ingrami, at Mai-i in the Arakan hills ; A. crispatus at 

 Maianoung and near Moulmain ; at this last named locality also occurred 

 a large, red-liped variety of A. urnula, and several specimens of A. Richtho- 

 feni, the shells slightly vary in the height of the spire, but all are of 

 exactly the same character. 



Alyc^us Kukziantts, n. sp. PI. xi. Fig. 2. 



A. testa subglohose conoidea, late timbilicata, pallide rubescente ; anfrac- 

 tibus 4, valde convexis, sublcevigatis, transversim distanter obsolete costellatis, 

 ultimo anfractu medio ambitus modice inflato, confertim costulato, turn 

 valde constricto Icevigatoque, in constrictione costd obtusd transversa in- 

 structo, rursusque expansiusculo atgue paulo defiexo; apertura magna, obliqua, 

 subrotundata, supra obtuse angulata, infra anguste canaliculata ; preritremate 

 modice incrassato, duplici, externo paulum expanso, labro interno plieatulo, 

 labio sublcevigato. Diam. maj. specim. maximi 3 - 5, minor 3, alt. 2"7 m.m. 



Sab. Nattoung in provincia Barmana, Brome dicta. 



The peculiarly formed aperture with the lower canal and its internal 

 plication on the outer lip readily distinguish this species from A. polygona, 

 which 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 specimens. 



Genus, Diplommattjsta. 

 Several remarkable varieties of formerly described species occurred with 

 other known forms, both in Arakan and at Moulmain. Among these the 

 following deserve special notice. 



1. JD. sperata, Blf., was found at Mai-i in the Sandoway district. It 

 is a very rare shell. 



2. J), polypleuris, Bens., occurs abundantly in the Sandoway district 

 and at Nattoung, more rarely near Moulmain. 



3. -D. olygopleuris, Blf. Very fine specimens, measuring 3 m.m. in 

 length and 1*5 m.m. in thickness, were collected on the Kumah hill in 

 Arakan, and a solitary specimen was found at Baom, also in Arakan. The 

 latter exactly agrees in form and size (length 2 m.m.) with typical Cachar 

 specimens, but while in these the costulation generally becomes obsolete on the 

 two last whorls, the same is well developed and comparatively slightly closer 



