THEOBALDltJS. 35 



sult'O lato fere circiundato, aufractibiis ad marginem cariiiatis, 

 cMi-ina exteriore elev.itiore. 



" Diani. major 24^, minor 19, axis 8 mill." {Benson.) 



Hdh. Cevloii {Layard). 



The author considers the keeled edp;es of tlie whorls of the 

 somewhat thickened opercukim to form a striking character in 

 this species, affording indications of an approach to the operculum 

 of Pterocyclus. C. loxostoma, Pfr., and C. hairdi, Pfr., are allied, 

 hut from the latter it differs in the flat spire, the formation of the 

 aperture, the colouring, and the absence of spiral striation. 



50. Theobaldius deplanatus, Pfeiffer. 



Ci/closfoiHd deplanalum {Ci/clophorus?), Pfeiffer, Proc. Zool. See. 



1854, p. ;501. 

 Ci/clop/iorus deplanatus, Pfeiffer, Men. Pneum. Suppl. 1, 1858, p. 62 ; 

 "Siippl. -2, 1865, p. 72; Blanford, J. A. S. B. xxxv, 1866, pp. 38, 



40 ; Hanley & Theobald, Conch. Ind. 1870, pi. 3, fig. 10; Pfeiffer, 



Men. Pneum. Suppl. ,">, lS7o, pp. 110, 409. 

 Myxostomd deplaiiafum, Theobald, J. A. S. B. xlv, part 2, 1870, 



p. 185 ; id., Cat. Shells Brit. India, 1870, p. 30. 

 Cyclophoriis ( Theobaldius) depkmahts, Nevill, Hand List, i, 1878, 



p. 270. 

 Theohaldiiis dephmatus, Kobelt & Mollendorff, Nachr. Deuts. i\Ialak. 



Ges. xxix, 1897, p. 105; id., Cat. Pneum. 1899, p. 17; Kobelt, 



Das Tierreich, Lief. 16, 1902, p. 93; id., Conch.-Cab., Ovclo- 



phoridae, i, 1907, p. 562, pi. 70, figs. 8-10; pi. 71, figs. 1-4. ' 



Original description : — " C. testa late umbilicata, depressa, sub- 

 discoidea, sohda, confertim striatula, nitida, fusco-lutea vel 

 castanea, fascia unica peripherica, luteacincta; spira vix prominula, 

 vertice subtili ; sutura profunda ; anfr. 5 rotundatis, ultimo 

 terete, antice sensim descendeute ; apertura obliqua, subcirculari, 

 intus alba ; perist. continue, incrassato, expansiusculo, subdupli- 

 cato, breviter adnato, margine columellari regulariter arcuato. — 



Operc. ? 



" Diam. maj. 27|, min. 23, alt. 8 mill." {Pfeiffer.) 

 Hab. India : Koondah Mountains {Pirrie) ; Anamullays, 

 Sispara Ghat {Beddome); Travancore {Theobald). 



51 . Theobaldius layardi, H. Adams. 



C'yclophorus layardi, H. Adams, Proc. Zool. See. 1868, p. 294, pi. 28, 

 fig. 21; II. Nevill, Enum. Helic. Pneum. Ceylon, 1871, p. 4; 

 Ilanley & Theobald, Conch, lud 1875, pi. 104, tigs. 2, 3. 



My.vostoma layardi, Theobald, Cat. Snells Br. ludin, 1876, p. 36. 



C'yclophorus {Theobaldins) lai/ardi, Nevill, Hand List, i, 1878, 

 ■p. 276. 



Theobaldius lai/ai-di, Kobelt & Miillendorft, Nachr. Deuts. iNIalak. 

 Ges. xxix, 1897, p. 105; id.. Cat. Pneum. 1899, p. 17; Kobek, 

 Das Tierreich, Lief. 16, 1902, p. 93; id., Conch.-Cab., Cyclo- 

 phoridae, i. 1907, p. 560, pi. 70, tigs. 1, 2. 



d2 



