102 CYCLOPIiORIDj!, 



Hah. Burma: Moulmaiu, Teuasserim {Theobald, StoUczka)', 

 Phaietan {Theobald). 



144. Pterocyclus cingalensis, Benson. 



Fterocyclos cinyalensis, Benson, A. M. N. H, ser. 2, xi, 1853, 

 p. iOo; Pfeiffer, Malak. Blatt. i, 1854, p. 81; id., Mon. 

 Pneuiu. Suppl. 1, 1838, p. 29; Ilauley & Theobald, Conch. 

 Ind. 1870, pi. 5, fig. 5 ; H. Nevill, Emun. Helic. Pneum. Ceylon, 

 1871, p. 5 ; Jousseaume, Mem. Soc. Zool. France, vii, 1894, 

 p. 301. 



Pterocyclus chn/alensis, Nevill, Hand List, ii, 1878, p. 261 ; Kobelt 

 & Mullendoi-ff, Nachr. Deuts. Malak. Ges. xxix, 1897, p. 113; 

 id., Cat. Pneum. 1899, p. 25 ; Kobelt, Das Tierreich, Lief. 16, 

 1902, p. 164 ; id., Conch.-Cab., Cyclophoridae, ii, 1909, p. 733, 

 pi. 106, fig. 8. 



Original description: — "Testa late uinbilicata, orbiculato- 

 depressa, solidula, radiato-striata, albida, supenie strigis subuiidatis, 

 medio fascia castanea picta ; spira planiuscula, apice vix prominulo, 

 sutura profuude impressa; anfractibus 5, convexis, ultimo lente 

 descendente, superne ahito, breviter soluto ; ala prominentiam 

 elongatam augustam ascendentem formante, postice carina obtusa 

 desinente ; apertura obliqua, subcirculari ; peristomate diiplici, 

 interiio porx'ecto, superne profunde inciso, externe incrassato, 

 superne dilatato, leviter deflexo ; umbilico profundiusculo. 

 Operculo (teste E. L. Layard) pyramidali. 



" Diam. major 19^, minor 16, alt. 6 mill." 



Hah. Ceylon : xMonabagalla Hill {E. L. Laj/ard). 



" Distingiiishbd from Pt. rupestrls by the length and narrowness 

 of the alar prominence, which ascends slightly on the penultimate 

 whorl, and runs parallel with it, instead of spreading semi- 

 circularly as in that shell. Prom Pt. alhersi it differs not only in 

 size, but in the absence of the incurvated beak which is such a 

 prominent feature in that species. Tlie umbilicus, equally broad 

 with that of Pt. rupestris, is somewhat deeper in proportion." 

 {Benson.) 



145. Pterocyclus comatus, M'oUendorff. 



Pterocyclus comatus (Beddome), G. Nevill, J. A. S. B. 1, 1881, 



p. 146 (uom. nud.). 

 Pterocyclus comitis (Beddome), MoUendortf, Nachr. Deuts. Malak. 



Ges. xxix, 1897, p. 36. 

 Pterocyclus comitis, Kobelt & JMollendortT, torn. cit. p. 113 ; id., Cat. 



Pneum. 1899, p. 25. 

 Pterocyclus coviatus, Kobelt, Das Tierreich, Lief. 16, 1902, p. 164; 



id., Conch.-Cab., Cyclophoridae, ii, 1910, p. 748, pi. 109, figs. 6-8. 



Original description : — " T. latissime umbilicata, depressa, fere dis- 

 coidea, solida, plicato-striatula, lutea, strigis flammulatis castaneis 

 regulariter picta. Spira brevissiine conoidea. Anfr. 5| teretes, 



