Pter 



PT^EROCYCLllS. 103 



sutura profunda subcaualiculata disjuncti, ultimas antice longi- 

 uscule desceiideiis. Apert. diagonalis, circularis, peristoma duplex, 

 iiiteruum siiperne profimde excisum, externum superne in alam 

 tubuli instar compressain antice deHexam productuin. 



" Diam. 16-3;3, alt. 8-06 mm." {MoUewbrff.) 



Hah. India: Aiiamullay Hills (Beddome). 



14(). Pterocyclus cumingi, Pfeiffer. 



Pteroci/clos cHmimji, Pfeiffer, Zeits. .ALalak. viii, 1851, pp. 5, 136; 

 id., 'i'roc. Zool. Soc. 1852, p. 158; id., Mou. Pneuin. 1852, p. 48; 

 id., Oat. riianeropn. Pirit. Mas, 1852, p. 30; id., Conch.-Cab., 

 Oyclostomaceen, 1853, p. 232, pi. 31, figs. 6-8; Adams, Gen. llec. 

 Moll, ii, 1855, p. 277 : Pfeitter, Mou. Pneuin. Suppl. 1, 1858, p. 2!) ; 

 Reeve, Conch. Icon, xiv, \d,Q^, Pterocyclus, \A.-), lig'. 14; Pfeiffer, 

 op. cit. Siippl. 2, 1865, p. 42; Ilanley & Theobald, Conch. Ind. 

 1870, pi. 49, figs. 7, 8 ; II. Nevill, Enuni. Ilelic. Pneum. 

 Ceylon, 1871, p. 5; Theobald, Cat. Shells Brit. India, 1S7G, 

 p. 38 ; Jousseaume, Mem. Soc. Zool. France, vii, 1894, p. 301. 

 eroci/clus cumini/i, Nevill, Hand List, i, 1878, p. 261 ; Kobelt &; 

 Mollendorff, Niichr. Deuts. Malak. Ges. xxix, 1897, p. 113 ; id., 

 Cat, Pneum. 1899, p. 25 ; Kobelt, Das Tierreicb, Lief. 16, 1902, 

 p. 165 ; id., Conch.-Cab,, Cyclophoridae, ii, 1909, p. 731. 



Original desa-iptioti-. — '^Pt. testa latissime umbilicata, solida, 

 striatula, uitida, f ulvo-lutea, strigis eastaneis fulguratis, bifasciatim 

 latioribus et saturatioribus picta ; spira plana ; anfract. 5 convexi, 

 ultimas teres, antice juxta penultimum in prominentiam elon- 

 gatam, fornicatam, sulco circumscriptam tumefactus ; apertura 

 parum obliqua, subcircularis, intus niargaritacea ; perist. simplex, 

 album, incrassatum, reflexum, superne sulco triaugulari sub- 

 interruptum, in linguam intlexam tenuiusculam productum. — 

 Opercalum? 



" Diam. maj. 32, min. 28, alt. 6 mill." (Pfeiffer,) 



Hub. Ceylon {Layard). Var. India: Travancore (StoliczJca). 



147. Pterocyclus cyclophoroideus, G. KeviU. 



Pterocyclus cyclophoroiJeiis, G. Nevill, J. A. S. R. 1, 1881, p. 145 ; 

 Kobelt & Mollendorff, Nachr. Deuts. Malak. Ges. xxix, 1897, 

 p. 113; id.. Cat. I'neum. 1899, p. 25; Kobelt, Das Tierreicb, 

 Lief. 16, 1902, p. 165; id., Con<di.-Cab., Cyclophoridae, ii, 1910, 

 p. 753. 



Orvjinal description :—" This is a form that has bitherfo been 

 confused with Pt. nanus, Benson, the shell is more depressed and 

 of thicker substance, resembling more closely Cyclophorusstenostoma, 

 Sowerby, both in form and colouration ; it can be distinguished 

 at a glance by the apparently constant absence of the conspicuous 

 band at the periphery ; I intended, despite all the above, to iiave 

 merely separated it as a subspecies, when I noticed that all my 

 Anam'ullay specimens have a much raised, concave operculum, 



