SYKES : LAND-SHELLS FROM CEYLOX. 2C5 



cornea, translncens, subtus nitidula, albido-cornea, fere Ifevis, radiatini 

 striatula ; spira subcouoidea, apice obtiisuUi, sutura marginata ; aufr. 

 5-5i-, plano-convexi, lente accrescentes, ultimus nou descendeus, ad 

 peripboriam carinatus, carina marginata ; apertnra lunata ; peristoma 

 simplex, rectum, margine columeUari ad perforationem breviter 

 retiexnm. Diam. max. 8"9, min. 8 mm.; alt. 4 mm. 

 Hah. — Watawala, Ceylon (Collett). 



5. PoLiTA NOTABiLis, n.sp. PI. XVI, Figs. 21-23. 



Testa depresso-conoidea, striatula, uitida, griseo-cornea, tenuis, 

 modiocriter et perspective iimbilicata, apice acutula ; anfr. 5, lente 

 accrescentes, couvexiusculi, sutura impressa ; apertura lunato-ovalis ; 

 peristoma rectum, simplex. Diam. max. 5, min. 4'5 mm. ; alt. 2' 15 mm. 



i/'^/J.— AVatawala, Ceylon (Collett). 



It is almost hopeless to devise a description of a species of this 

 form which will prove sufficient for its recognition, and the assistance 

 of the artist must be called in if there is to be any hope of its 

 identification by future workers. The genus Polita, although one 

 would hardly expect to find it in Ceylon, appears conchologically 

 quite suitable, and until we are acquainted with its anatomy the 

 species may be placed there with P. 7utida, etc. 



6. Macrochlamys? circumsculpta, n.sp. PI. XVI, Figs. 3, 4. 



Testa perforata, convexo-depressa, nitida, cereo-hyalina ; spira 

 breviter conoidea, apice obtusa ; sutura impressa ; anfr. 5, convexi, 

 arte convoluti, obsolete spiraliter lirati, ultimus non descendeus, basi 

 intlatus ; apertura lunaris ; peristoma rectum, acutum, margine 

 columeUari ad perforationem dilatato, subrellcxo. Diam. max. 5, 

 min. 4' 7 mm. ; alt. 3 mm. 



//rti._Watawala, Ceylon (Collett). 



This species is nearly related to the Helix Tlnvaitesi of Pfeiffer 

 (which is also obsoletely spirally Urate), but may be at once distinguished 

 by tlie fact that its breadth is greater in proportion to the number of 

 whorls. The ixmbilicus is also slightly smaller in the present species, 

 the spire is not so much raised in proportion, and the nucleus is larger. 

 The sculpture is stronger than in I£. Thwaitesi, and a few of the 

 stronger lines of growth intersect the revolving lira3, thus giving the 

 shell a decussated appearance under a lens. 



In 1871 Nevill recorded, under MS. names only, three species of 

 Cyathopoma ivoiw Ceylon. Colonel Beddome, in 1875, described' one 

 of these as C. Ceijlanicum; and when describing another species from 

 South India (C. album), recorded this latter doubtfully as from 

 Dimbola, Ceylon. Dr. Jousseaume added C. Mariee in 1894, which 

 appears to be identical with Xevill's MS. C. Bickoyense ; whilst tlie 

 latter's third species is hei'e described as C. artatum, so that all the 

 manuscript names are now accounted for. 



1 Proc. Zool. Sue, 1875, pp. 442-53, pis. lii, liii 



