210 LAND AND FRESHWATER 
Shell discoid, umbilicated, solid, base flat ; sculpture none; colour 
pale liver-brown; spire very low, apex flat; suture very shallow ; 
whorls 5, regularly increasing ; aperture suboval, flat on the upper 
margin, subyertical; peristome thickened, sinuate below, very 
oblique from columellar margin. 
Size: maj. diam. 14°0, min. 12°8; alt. axis 5:0, body-whorl 4:8 mm. 
Macrocutamys ? HEPATIZON,n.sp. (Plate LIIL figs. 4, 4 a, 4 b.) 
Locality. Toruputu Peak, Dafla Hills. 
Shell umbilicated, discoid, glassy ; sculpture short, microscopic 
longitudinal striz, not continuous; colour pale sienna-brown, 
whitish below, with a stronger defined brown edging at the aper- 
ture; spire very low, apex flat; suture shallow, adpressed; whorls 
5, flat above, rounded on periphery ; aperture narrowly lunate, sub- 
vertical ; peristome thin, very oblique on the columellar margin and 
but little reflected at the perforation, slightly sinuate below. 
Size: maj. diam. 12°75, min. 11°2; alt. axis 4°8, body-whorl 3°38 mm. 
Macrocutamys? perasus, Bs. (Plate LIII. fig. 6.) 
Helix petasus, Benson, A. M. N. Hist. 1859, iii. p. 388; Pfr. 
Mon. Hel. vol. v. p. 97. 
Macrochlamys (sec. A) petasus, Theob. Cat. Supp. p. 18. 
Nanina (Microcystis) petasus, Nev. Hand-list, p. 35. 
Locality. Phie Than, Tenasserim (ex coll. W. 7. Blanford) 
Shell very narrowly perforate, globosely conoid, flat on base, 
rather solid, polished; sculpture indistinct transverse lines of 
growth, otherwise quite smooth; colour pale ochre; spire sub- 
depressed, apex rounded, sides nearly flat ; suture shallow ; whorls 6, 
somewhat flatly convex above, rounded on periphery, closely wound ; 
aperture lunate, nearly vertical ; peristome thin ; columellar margin 
oblique, nearly straight. not reflected. 
Size: maj. diam. 11:5, min. 9-5; alt. axis 5-0, body-whorl 4:0. 
A specimen from same locality (ex Indian Museum), sent me by 
Mr. G. Nevill, is identical. The animal of this species has not 
been examined. 
Original description :—‘“ Testa perforata, orbiculato-convexa, 
radiato-striatula, nitida, translucente, cornea; spira brevi, con- 
vewiuscula, apice elevatiusculo, obtuso, sutura leviter canaliculata ; 
anfractibus 6, convexiusculis, lente accrescentibus, ultimo ad peri- 
pheriam valde rotundato, subtus convexo ; apertura subverticali, late 
lunata, peristomate imtus ad marginem ipsum albo-labiato, margine 
basali arcuato, columellari ad perforationem brevissime reflexo. 
“ Diam. major 10, minor 9, axis 4 mill. 
“Var. spira convexiori: Diam. major 93, minor 9, axis 43 mull. 
‘* Habitat ad Phie-Than, vallis Tenasserim. 
‘A small polished Nanina of the vitrinoid type, notable chiefly 
for its shallow canaliculate suture, and for the labiation, which is 
so even with the edge of the lip, at the base, as to give a solid 
appearance to the shell.” 
