458 Mr. W. T. Blanford on the Classification of 
IL. Type, A. constrictus, Bens. Shell perforated, ovately eo- 
nical; sculpture consisting of very few ribs on the inflated por- 
tion of the shell; sutural tube very short. F 
A. constrictus, Bens. Darjiling. 
A, bembex, Bens. Darjiling. 
A, otiphorus, Bens, Darjiling. 
A, graphicus, W. Blanf. Arakan Hills, Burma. 
III. Type, A. polygonoma, W. Blanf. Shell subturbinate, 
narrowly umbilicated, with the peristome more or less crenulated ; 
sculpture fine. ; 
A. polygonoma, W. Blanf. Arakan Hills, Pegu. 
A. succineus, W. Blanf. Arakan Hills, Pegu. 
A, Vulcani, W. Blanf. Puppa Hill, in the kingdom of Ava. 
IV. Type, A. crenulatus, Bens. Shell turbinately depressed, — 
solid, costulated. 
a. Peristome fimbriated. 
A, crenulatus, Bens. Darjiling, 
A, plectocheilus, Bens. Darjiling. 
b. Aberrant ; peristome not fimbriated. 
A, vestitus, W. Blanf, Arakan Hills. 
V. Type, A. sculptilis, Bens. Shell perforated, subtrochiform, 
costulated, compressed at the periphery. 
A. sculptilis, Bens. Pegu. 
A, Rechthofeni, W. Blanf. Molmain. 
A, Jagori, Yon Martens. Java? 
VI. Type, A. wumbonalis, Bens. Shell depressed, solid, strongly 
costulated ; constriction remote, simple. a. 
A. umbonalis, Bens. Pegu. 
A. Ingrami, W. Blanf. Arakan. 
A, Andamania, Bens. Andaman Islands. 
A. physis, Bens. Darjiling. 
A. prosectus, Bens. Khasi Hills. 
A. armillatus, Bens. Thayet Myo, Pegu. 
A. humilis, W. Blanf. Akoutoung, Pegu. 
A. ,n.sp. Arakan. a 
VII. Type, A. strangulatus, Hutt. Shell depressed or de- 
pressly turbinate, costulated ; constriction broad, crossed by a 
ridge or swelling. (Charaz, Bens.) 
a. Ridge crossing the constriction not recurved ; shell depressed. 
A. strangulatus, Hutt. Western Himalayas. 
yet been very partially explored. It is remarkable that Dr. von Martens 
reat not have met with either this genus or Diplommatina in the 
oluccas. : 
