B24 Contributions to Indian Malacology. [No. 4, 
mm. in. 
Mayoridiami ls vee.) eens 0.14 
Manorsdittos (in. Peers spes sti 0.12 
LCR ine AEE TAR SOL ee 0.08 
Diaimivapery Bae jae 1 0.04 
Hab.—The hills Hast of Mandalay and Ava. 
This species approaches A. Strangulatus, Hutt. which is larger and 
more discoid. 
5. Atycmus RICHTHOFENI, ND. s. 
Shell umbilicated, turbinate, rather solid, closely flexuously costu- 
lated, more strongly so on the inflated portion. Spire conical ; apex 
rather acute ; suture impressed. Whorls 5, rounded, the last moder- 
ately swollen at the side, and sub-angulate at the periphery, and more 
strongly so round the umbilicus, then much contracted, ascending 
slightly at the inflation, descending considerably behind the aper- 
ture. Constriction slightly costulated, crossed by a very prominent 
vertical ridge. Sutural tube of moderate length, about 23 mm. 
Aperture circular, very oblique. Peristome continuous, double, the 
inner lip projecting slightly, and waved 3 times on the dextral side. 
Outer lip broadly and flatly expanded. Opere. ? 
mm. in. 
Major diam., 5 0.2 
Minor ditto, Moria cae eerie eG J 0.15 
ENE Me AOi est ee SSeS ES eM ah 0.15 
Diam. ap., i: 0.06 
Hab —Molmain. 
1 am indebted to Baron F. v. Richthofen for the only specimen 
of this shell which has been found. It is perfect, but bleached. The 
species is quite distinct in type from any Indian or Burmese form 
with which I am acquainted ; it combines a high conical spire with 
a strong ridge on the constriction, but it recalls somewhat the 
Javanese A. Jagori, Martens. I have much pleasure in naming 
this interesting little form after the discoverer, to whom I was also 
indebted for some living specimens of Raphaulus chrysallis, Pfr. and 
other Molmain shells. 
6. DIPLOMMATINA PUPPENSIS, n. s. 
Shell dextral, not rimate, elongately subovate, thin, translucent, 
light amber in colour, very finely and closely costulated, spire with 
