238 ZOXITIDJE. 



three times as numerous. The shell has the aperture peculiarly 

 oblique. The shell-lobes are as in Macrochlamys. The genitalia 

 have not been satisfactorily worked out, owing to lack of material 

 properly preserved.] 



362. Sakiella honesta, Gould (Helix), Proc. Bost. Soc. N. H. ii, 1846, 

 p. 99; Pfr. (Helix) Mon. Hel. i, 1847, p. 57; id. t. c. iv, 1859, 

 p. 63 ; id. t. c. vii, 1876, p. 19 ; Elf. (Nanina) J. A. S. B. 1865, 2, 

 p. 87 ; Stol. Macrochlamys (Durgella), J. A. S. B. 1871, p. 248 

 pi. 17, figs. 6 & 6 a ; H. $ T. (Helix) C. I. 1876, pi. 90, fig-. 10 

 Nevill, Nanina (Macrochlamys), Hand-l. i, 1878, p. 24 ; Godwin- 

 Austen, Mol 2nd. i, 1883, p. 142, pi. 19, figs. 7-7 b (details of 

 animal); v. Mart. Nanina (Durgella), Jour. Linn. Soc. xxi, 1889, 

 p. 162. 

 [Fwfefig. 79, E-L] 



Shell narrowly and subobtectly perforate, depressed, orbiculate, 

 smooth, polished, straw-coloured or whitish horny, translucent ; 

 spire depressedly conoid, apex blunt, papillate ; whorls 5, slightly 

 convex above, regularly increasing in size, the last usually 

 descending somewhat at the mouth, subangulate at the periphery, 

 convex beneath ; aperture diagonal, broadly lunate ; peristome 

 thin, the upper margin (in adults) arcuate, columellar not quite 

 vertical above, broadly reflected and slightly thickened, nearly 

 covering the perforation. 



Major diam. 11, min. 10, height 6 mm. 



Sab. Throughout Pegu and Tenasserim. The type was from. 

 Tavoy. 



The concentric or longitudinal sculpture of fine close impressed 

 lines observed around the perforation by Gould and Stoliczka is 

 easily seen under a microscope in young shells, but not, as a rule, 

 in adults. The subangulation at the periphery varies ; in the 

 typical form the aperture is angulately lunate. 



Nevill's var. andersoniana [(vide Appendix to Macrochlamys, 

 p. 141)] is larger, the subangulation of the periphery is slighter, 

 often scarcely perceptible. It measures 13xllfX7inan average 

 specimen. It occurs in Pegu with the typical variety, and appears 

 to be the only form found to the northward and in Assam. The 

 var. tenuior (undescribed) is said to be from Preparis Island, north 

 of the Anda'mans. [Both these are separated as distinct species.] 



The genitalia are said to be of the usual type, and the spermata- 

 phore, figured by Stoliczka, is long, terminating at one end in a 

 trumpet-shaped aperture, and at the other in a sac, and furnished 

 near the former end with horny branching appendages. The jaw 

 is narrow and smooth, with (or, as shown in Godwin-Austen's 

 figure ("this was of S. 7ionesta~], without) an obtuse median projec- 

 tion. The radula has about 23 broad teeth in the middle, with 

 30 to 35 narrow laterals (30 . 11 . 1 . 11 . 30) ; the middle tooth 

 tricuspid, the admedian becoming bicuspid, the outer laterals bi- 

 cuspid with the points directed outwards. [All this refers to 

 Macrochlamys andersoniana (vide p. 141).] 



