BAY ANA . — EUPLKCTA . 



51 



Animal (of B. politissima) witboat shell-lobes; right dorsal 

 lobe moderate, the left divided into a large anterior and a small 

 posterior lobe with a wide interval between them. Sole narrow, 

 undivided, truncated behind ; mucous pore large, overhung by a 

 large lobe. Kale-sac short, curved, rather pointed at the free end, 

 receiving tlie vas deferens at about one-third its length from the 

 junctioir with the diverticulum leading to the retractor muscle ; 

 [retractor muscle attached to a caecum ;] penis-sheath short, distallv 

 to the junction sharply bent, the two segments of the bend held 

 together by a muscular band ; diverticulum stout, simple. Sper- 

 matheca very short. Amatorial organ (dart-sac) very_ large, 

 much larger than penis. Jaw arched, with a median projection. 

 Eadula broad, with a broad median tract, the teeth-formula being 

 56 . 2 . 18 . 1 . 18 . 2 . 56 (76 . 1 . 76) ; rhachidian tooth broad, with 

 a large cusp on each side, the 18 inner laterals or admedians each 

 with a single well-marked cusp on the outer side ; outer laterals 

 narrow, long, aculeate, the outermost marginals very short. 



The only species known was regarded as a Macroclilamys until 

 the anatomy was examined. Possibly some other thin, horny, 

 depressed shells from S. India or Ceylon belong to the present 

 genus. 



78. Ravana politissima, Pfr. (Helix) P Z S 1853, V-^f\if 

 (Helix) J/o«. Hel. iv, 1859, p. 45; H. ^- T. (Helix) Ci. 18.6, 

 pi. 31, figs. 8, 9 ; Godwin- Austen, Proc. Mai. Soc. iv, 1901, p. -^01, 

 pi. 36. 

 Shell openly perforate, depressed, thin, polished, greenish or 

 castaneous horny, striated beneath the epidermis, and marked 

 with faint impressed spiral lines, not perceptible in fresh shells ; 

 spire low, obtuse, suture deeply impressed. Whorls 4^-0, convex, 

 re<^ularly increasing, the last rounded, not descending ; aperture 

 sli^htlv oblique, roundly lunate ; peristome simple, nearly in one 

 plane, 'thin, the margins converging, columellar reflected above. 

 Major diam. 21, min. 20, axis 11 mm. 



Hah. The hills of South-western Ceylon, at an elevation ot 

 about 3000 feet; Pusilawe (Layca-d) ; Wata\sale (Collett). 



Genus EUPLECTA. 



Type, E. suhopaca, Pfr. ^t i n ^i 



Ranqe. The Indian Peninsula and Ceylon. Nearly all the 

 species are confined to the neighbourhood of the western coast 

 of India and the mountains of S.W. Ceylon. _ 



Shell perforate (rarely imperforate), of moderate size depressed 

 turbinate, turbinate or trochiforra, rather closely wound generally 



