132 CYCLOPHORID/E. 



the peuultimate with three ribs or lines, more prominent before 

 the loss of the epidermis ; the umbilicus prominently spirally 

 ribbed within ; aperture circular, oblique ; peristome tliin, simple, 

 continuous, slip;htly angled at the inner base at tlie termination 

 of the first rib round the uuibilical region ; operculum externally 

 very concave, with the margins of the outer shelly layer mucli 

 raised but straight and not at all arched, multispiral, with a small 

 transparent nucleus : length jL iu(.\i [1-75 mm.], breadth ^^ inch 

 [2 mm.]." (Beddome.) 



Hah. India: Yellaglierry Mountains; SirumuUay Hills, Din- 

 digul {Beddome). Ceylon : Dimbola {Beddome). 



Stated by tlie author to be allied to C.l-olamidliense, Blanford. 



183. Cyathopoma artatum, Syl-es. 



Cyathopuma artatum, Sykes, Proc. Make. Soc. ii, 1897, p. 236, 



pi. 18, tigs. 19, 20. 

 Ci/athopoma (s. str.) artatum, Kobelt & Mulleiidorff, Nachr. Dents. 



'Malak. Ges. xxxi, 1899, p. 136 ; id.. Cat. Pneiim. 1899, p. 103. 

 Cyathopoma {Cyathopoma) artatum, Kobelt, Das Tierreicb, Lief. 16, 



1902, p. 219. 



Original description : — " Testa dextrorsa, late et perspective 

 umbilicata, depresso-turbinata, apice acutula, periostraco calcareo, 

 deciduo, induta, sub hoc albido-coruea, polita ; anfr. 4^, i-egulariter 

 accrescentes, spiraliter lirati, sub lente leviter trausversim striati, 

 ultimus carinis duabus supra peripberiam, et sex liris magis 

 approxiuiatis sub peripberiam et in umbilico, penultimus duabus 

 carinis ; apertura circularis, peristomate simplice, continue, intns 

 leviter incrassato; operculum valde conca\iin), multispirale. Alt. 

 1-3, lat. 2 mm." (Si/hs.) 



Bab. Ceylon : Uda Pussella\\ a {Preston). 



" This minute species is noteworthy for being clothed witli a 

 periostracum of a very chalky nature, which, however, appears to 

 be very easily rubbed off, and many specimens only fully exhibit 

 it within the umbilical area. The thi'ee upper carinations are 

 sharply edged, while those below the periphery and in the 

 umbilicus are rounded and thread-like." {t'^'i/kes.) 



184. Cyathopoma atrosetosum, Beddome. 



Cyathopoma {Jerdoiiia) atrosetosum, Beddcme, P. Z. S. 1875, p. 448, 



pi. 52, tig. 18. 

 Cyathopoma atrosetosum, Theobald, Cat. Shells Brit. ludia, 1876, 



Addenda, p. ii ; Pfeiil'er, Mon. Pneum. Siippl. 3, 1876, p. 380. 

 Cy<itho))oi»a (s. str.) atrosetosum, Kobelt & Mullendorff, NacLr. 

 'Dents. Malak. Ges. xxix, 1897, p. 119; id.. Cat. Pneum. 1899, 



p. 31. 

 Cyathopoina {Ci/athopoma) atrosetosum, Kobelt, Das Tierreicb, 



Lief. 10, 1902, p. 219. 



Ori(jinaI description : — " Shell umbilicated, o\ ate to subturbinale, 



