110 CYCLOPHOBID^, 



1860, p. 124, pi. 35, figs. 5-9; Eeeve, Couch. Icon, xiv, 1863, 

 Fterocyclos, pi. 3, lig. 16; Blanford, J. A. S. B. xxxiv, 1865, 

 p. 97 ; Hanley & Theobald, Conch. Ind. 1875, pi. 134, figs. 2-4 ; 

 Theobald, Cat. Shells Brit. India, 1876, p. 38. 

 Pteruci/clits puUatas, Nevill, Hand List, i, 1878, p 262; Kobelt 

 & MiJllendorff, Nachr. Beuts. Malak. Ges. xxix, 1897, p. 114; 

 id., Cat. Pneum. 1899, p. 26 ; Kobelt, Das Tierriec-h, Lief. 16, 

 1902, p. 168 ; id., Couch.-Cab., Cyclo])horidae, ii, 1909, p. 728, 

 pi. 105, figs. 13-15. 



Otnginal description: — "Testa aperte umbilicata, convexo- 

 depressa, coufertira radiato -striatula, iiigresceiite - castanea, 

 superne strift-is luteo-albidis, fulguratis, fasciaque saturata ornata ; 

 spira convexa, sutura profunda, apice promiuulo ; anfractibus 4^ 

 convexis, ultimo longe desceiulente, subtus eonvexo; apertura vix 

 obliqua, circulari ; peristoniate duplici, interiori breviter porrecto, 

 superne siuu mediocri latiusculo, interrupto, exteriori vix 

 expansiusculo, superoe alam subrevolutam semicucullatam, antice 

 breviter descendentein obtusam, ab anft-actu penultimo distantem 

 efformante : uiubilico mediocri, profundo perspectivo. Operculo 

 intus concave, estus concaviusculo, scabro; anfractnum margiidbus 

 elevatis ; margine laterali lato, laniellis acutis spiralibus munito. 



" Diam. major 13, minor 11^, axis 6 mill." (Benson.) 



Hah. Burma: Akoutong (Theobakl, Blanfoi'd). 



157. Pterocyclus nipestris, Benson. 



IHcrocyclos ruj.)estris, Benson, J. A. S. B. i, 1832, p. 13, pi. 2, fig. 1 

 (not pi. 1, fig. 2) ; id., op. cit. v, 1836, p. 356; id., A.M.N.H. 

 ser. 2, i, 1848, p. 346; Gray, Nomencl. Moll. Brit. Mus. 1850, 

 p. 12; Pfeilier, Zeits. Malak. viii, 1851, pp. 4, 136; id.. Cat. 

 Phaneropn. Brit. Mus. 1852, p. 29 ; id., Mon. Pneum. 1852, p. 46 ; 

 id., Conch.-Cab., Cyclostomaceen, 1853, p. 231, pi. 31, figs. 3-5, 

 9-11 ; Adams, Gen. liec. Moll, ii, 1855, p. 277, pi. 85, fig. 3; 

 Reeve, Conch. Icon, xiv, 1863, Plerocyclos, pi. 2, fig. 8 ; Blanford, 

 J. A. S. B. XXXV, 1866, p. 38 ; Hanley & Theobald, Couch. Ind. 

 1870, pi. 5, fig. 8 ; Pfeifl'er, Mon. Pueum. Suppl. 3, 1875, p. 53; 

 Jousseaume, Mem. Soc. Zool. Frauce, vii, 1894, p. 301. 



Spiracultfrn nipestris, Pearson, J. A. S. B. ii, 1833, p. 592. 



Fterocyclus rupestris,'^Q\i\\, Hand List, i, 1878, p. 260; Cooke, 

 Cam'br. Nat. Hist, iii, 1895, p. 266, fig. 180 .\ ; Kobelt & 

 MciUeudorff, Nachr. Dents. Malak. Ges. xxix, 1897, p. 114; id.. 

 Cat. Pneum. 1899, p. 26 : Kobelt, Das Tierreich, Lief. 16, 1902, 

 p. 169; id., Conch.-Cab., Cyclophoridse, ii, 1909, p. 736, pi. 106, 

 fig. 10. 



Steganotoma picta, Troschel, Arch. Naturg. iii, part 1, 1837, 

 p. 165, pi. 3, figs. 12, 13 (shell) ; figs, a, b, c (operculum). 



Steganotoma j^ietiwi, Philippi, Abbild. Conch, i, part 5, 1844, 

 p. 105, Cyclostoma, pi. 1, fig. 5. 



Fterocyclos pictus, Pfeiffer, Couch.-Cab., Cvclostomaceen, 1849, 

 p. 194, pi. 24, figs. 21 23 (shell) ; figs. 24, 25 (operculum) ; Gray, 

 Nomencl. Moll. Brit. Mus. 1850, p. 12. 



Original description: — " Sliell sub-diapbanous, wliitisli, closely 

 striated across the whorls, marked above and below with angular 



