196 LAND AND FRESHWATER 



Hill, described in Journ. Asiat. Soc. IJeugal, vol. xlii. pt. 2, 1873, 

 p. 16. It is not so pyramidal, the aperture is not so lunate, but it 

 is similar in being Iricarinate. The type of carinifera is in the 

 Calcutta Museum : Ncvill, Hand-list, i. p. 33, as Nanina (Sitala). 



Genus SyivESTA. 



Stkesia biciliata. (Plate CXII. figs. 3-3 c.) 



Beliw hiciUata, Pfr. P.Z. S. 1855, p. 112; Pfr. Mon. Hel. vol. iv. 

 p. 68 ; Hanley, Conch. Ind. p. 64, pi. clix. figs. 1-4. 



Hemiplecta (sec. A) biciliata, Theob. Suppl. Cat. p. 21. 



Syl'esia biciliata, Sykes, Proc. Malacol. Soc. London, vol. iii. 

 p. 169 (1898). 



Flectopylis (SyJcesia) biciliata, Gude, ' Science Gossip,' No. 61, 

 vol. V. June 1899, pp. 16, 17. 



Nanina hiciUata, Pfeiff'er, Malak. Bliitt. ii. 1855, p. 121. 



Discus biciliata, H. Nevill, Enum. Helic. Ceylon, 1871, p. 1. 



Nanina {Hemi'plecta) biciliata, Pt'eiffer, Vers, p. 121. 



Mr. G. K. Gude, in his paper on " Armature of Helicoid Land- 

 Shells and new Species of Flectojri/lis," published in 'Science Gossip,' 

 writes of this species biciliata as follows (under the subgeneric title 

 of Sylrsia), in June 1899 : — " The systematic position of this shell 

 remained uncertain for a long time ; it was placed in Nanina by 

 Dr. Pfeiffer (Malak. Platter, ii. 1855, p. 121) and in Bisciis by 

 Mr. H. Nevill (Enum. Helic. Ceylon, 1871, p. 1), while finally 

 Mr. S. Clessin grouped it with Macrochlamys (Nomencl. Helic. Viv. 

 1881, p. 45). It is unfortunate that Dr. Pfeiffer's types of this 

 species cannot be found. They were described as from the late 

 Major Skinner's collection, but Miss Linter, who purchased the 

 entire collection, kindly informs me that the shells in question are 

 not in it, and she does not think that Major Skinner ever possessed 

 them, there being no record of them in his Catalogue. Mr. Edgar 

 Smith has obligingly searched the British Museum Collection for 

 these types, but without success. The species appears to be rare, 

 for since it was first discovered it has remained unobserved until 

 Mr. H. B. Preston found a single specimen at Patapolla, Ceylon, as 

 recorded by Mr. E. II. Sykes (Proc. Malac. Soc. London, iii. 1898, 

 p. 66), and Mr. 0. Collett subsequently found two specimens at 

 Hapatale (Sykes, op. cit. p. 160). The three specimens referred to 

 agree with the figures in ' Conchologia Indica,' and it may theiefore 

 be safely assumed that they are correctly identified, and to Mr. Sykes 

 belongs the credit of first pointing out the true systematic position 

 of the species." 



Mr. E. R. Sykes in his paper read June 1898, quoted above, 

 after describing Thysunota hisjnda, a beautiful new species allied to 

 T. (juerini, records what he had worked out regarding Helix 

 hiciUata, Pfr. : — 



" Practically all that we know of the I/, biciliata, Pfr., is con- 

 tained in his original description; there are also the figures by 

 Hanley and Theobald. Pfeiffer records the habitat as ' Ceylon' and 



