PTEEOCYCLUS. 101 



142. Pterocyclus brahmakundeusis, Godivin- Austen. 



Pteroci/clos hrahmakmulensis, Godwin-Austen, liec. Ind. Mus. 

 viii,"l915, p. 499, fig. 1. 



" Shell very depressedly discoid, smooth throughout, very widely 

 umbilicated : sculpture fine and close, transverse lines of growth 

 on the epidermis ; colour sienna-brown, more ochraceous below, 

 indistinctly mottled, passing into zig-zag markings on the apical 

 whorls, a narrow black peripheral band ; spire very flat, scarcely 

 raised above tlie last whorl ; suture well impressed ; whorls 5, 

 rounded on periphery, narrowing ra[)idly, rather closely wound, 

 the last descending ; aperture circular, oblique ; peristome double, 

 fairly strong, reflected, inner lip continuous, shallowly sinuous on 

 the upper inner margin next the wing, this is spout-shaped, 

 directed upwards; columellar margin rounded; operculum not 

 seen. 



" Maj. diam. 2-1 ; alt. axis 1-4 mm." [err. typ. read 2L x 14 mm.] 



Hah. India: Brahmakiind, Eastern Assam {M. T. Ogle). 



" I have had this species I'or many years ; it was given me by 

 Mr. Ogle, collected when he was surveying in Eastern Assam. 

 The opportunity now occurs of bringing it to notice, with the tine 

 series from the contiguous Abor Country. It is interesting to 

 compare its form with Fteroci/clos mirien^is, and to note the 

 differences, particularly in the sculpture of the latter." {Godwin- 

 Austen.) 



143. Pterocyclus cetra, Benson. 



Pteroci/dos eetra, Benson, A. M. N. H. ser. 2, xvli, 1856, p. 228 ; 

 Theobald, J. A. S. 13. xxvi, 1857, p. 246; Pfeifier, Mon. 



pi. 134, figs. 7, 10; Theobald,"^ Cat. Shells Brit. India, 1876, 

 p. 38. 

 Pterocyclus cetra, Nevill, Hand List, i, 1878, p. 262; Kobelt it 

 M5ilendorl¥, NacUr. Deuts. Malak. Ges. xxix, 1897, p. 113; id.. 

 Cat. Pueum. 1899, p. 25; Kobelt, Das Tierreich, Lief. 16, 1902, 

 p. 164 ; id., Conch.-Cab., Cyclophoridae, ii, 1909, p. 727, pi. 105, 

 figs. 10-12. 



Original description: — "Testa late umbilicata, orbiculato- 

 depre'ssa, capillaceo-striatula, luteo-cornea, strigis radiatis, sub- 

 remotis, irregularibus ornata ; spira planata, sutura impressa, 

 apice vix prominulo : ant'ractibus 5 convexiuscuiis angustis, ultimo 

 breviter descendente ; apertura obliqua, circulari, peristomate 

 duplici, interior! continuo, breviter porrecto, superne breviter 

 emargiuato, exteriori expanso, inci'assato, superne lingua obtusa 

 vix descendente, sinu prot'undo ab anfractu penultimo separata, 

 munito ; umbilico lato, non profundo, omnes aufractus exhibente, 

 margine siibanguhito. Operculo ? 



" Diam, major lo, minor 10, axis 4 mill." {Benson.) 



