CYATHOPOMA. 149 



210. Cyathopoina natalicium, God win- Austen. 



Hijathopoma natalicuDn, GodwIa-Au«ten, I'roc. ZooJ. Soc. 1895, 



p. 4o;3, text-tig-. ]J. 

 diafhopoma (s. str.) natalicium, Kobelt it Miillendovff, Naclir. 

 'Dents. Miilak. Ges. xxix, 1897, p. li'O ; id., Cat. Pneum. 1899, 



Cyathopoma {Cyathopoma) natuhcium, Kobelt, Das Tierreicli, 

 Lief. IG, 1902, p. 222. 



Original description : — " Sliell dextral, depressedly turbinate ; 

 openly uinbilicated, flat below, angulate at the umbilicus ; sculpture 

 smooth above, with very fine regular transverse costulation on the 

 last whorl, with a strong Urate rib on the peripher}^ ; colour pale 

 ochraceous ; spire low; apex blunt ; suture well marked; whorls 

 4:5, convex ; aperture arcuately circular, subvertical, sinuate on 

 outer margin, somewhat angular below at the peripheral ribs; 

 peristome double, continuous. 



" Operculum multispiral, elongate, with a deep central depression. 



" Major diam. 2-25, alt. axis 1*2 mm." (^Godwin- Austen.) 



Ilab. JS^icobars: Camorta. 



211. Cyathopoma nitidum, Beddome. 



Cyafhoponut {Jerdonia) nitidnm, Beddome, P. Z. S. 187o, p. 41o, 



pi. 52, tig. 12 ; Kobelt & Molleudorff, Nachr. Deuts. Malak. Ues. 



xxix, 1897, p. 120; id.. Cat. Pueiim. 1899, p. 32; Kobelt. Das 



Tierreich, Lief. 16, 1902, p. 226. 

 Cyathopoma nitidum, Theobald, Cat. Shells Brit. India, 1876, 



Addenda, p. ii ; Pfeiffer, Mon. Pueum. Suppl. 3, 1876, p. 38L 



Original description : — " Shell inconspicuously umbilicated, 

 pyramidal, turreted, smooth, shining, of a yellowish olive tint, 

 apex rather obtuse, sutures deep, a very minute oblique striation 

 is generally visible under the lens ; whorls 5, convex, smooth, 

 the lowest scarcely descending towards the aperture ; aperture 

 circular ; peristome continuous, single, thin ; operculum double, 

 thick, surrounded by a sulcate margin, externally very slightly 

 concave ; the nucleus very large, lialf the diameter ol the circle, 

 very thin, transparent, shining, destitute of whorls, the outer 

 portion externally shelly, internally membranaceous, furnished with 

 an exquisitely close spiral sculpture : lengtli of shell varying from 

 J.7 [2 mm.] to i inch [o mm, J, breadth of lowest whorl jV inch 

 [2 mm.]." 



Hah. India : Anaiiudlay Hills, 6000 ft., 8outh Canara Grhats, 

 4000 ft. (Beddome). 



" A shell of very simple structure, closely allied to Cijclostoma 

 trochlea^ Bens. {Jerdonia, Blanford), but without any carinatious, 

 and a much smaller umbilicus; the operculum is very similar, but 

 with a larger transparent nucleus and much more closely wound. 



" The operculum of Cyathopoma luynudense, procerum, and 

 kolamaUiense, is very similar to that of this shell, only differing iu 

 being a little more concave externally." (Beddome.) 



