444 rERUSSACiD.E. 



439. Grlessula simoiii, Jousscamne. 



Glcssida simoiii, Jousseaume, Mem. Soc, Zool. France, vii, 1894, 

 p. 298, pi. 4, fig. 10; Beddome, Proc, Malac. Soc. London, vii, 

 190G, p. 172; Pilsbrv, Man. Conch, ser. 2, xx, 1908, p. 61, 

 pi. 7, fig. 8. 



OvKjinal description : — " Testa pai'va ovata, tenuis, costulata, 

 nitida, pelliicida, fulvo-cornea, spira conoidea apice obtusiuscula, 

 sutura inipressa ; anfr. 5-6 couvexi, iiltimus deinidium longitu- 

 dinis ajquans, basi vix attenuatus, rotuiidatis ; apertura verticalis, 

 seniiovalis ; perist. rectum, tenue, acutum, margine dextra minus 

 arcuato ; columella callosa, subrecta, valde arcuata, oblique trun- 

 cata ad nmbilicuni appressa et depressa. 



"Alt. 3 mill. ; diam. 1-5 mill.'' (Jousseaume.) 



Hah. Ceylon : Slopes of Pedro, Nuwara Eliya (Simon). 



Four live specimens were taken by Simon, but two of them 

 were younger than the one made the type by Jousseaume, which 

 he cousidered immature. 



" This minute form has about the size of a Tornatellina, but 

 seems to be more strongly sculptured than is usual in that genus. 

 The embryonic whorls are smooth, a litttle darker than the rest of 

 the shell." (Pilshry.) The latter statement is evidently a lapsus, 

 for Jousseaume distinctly states that they are less dark than the 

 remainder of the sliell 



Genus DIGONIAXIS, Jousseaume. 



Diqonia.cis, Jousseaume, IJull. Soc. Malac. France, vi, 1889, p. 349; 

 Pilsbry, iMan. Conch, ser. 2, xix, 1908, p. 288. 



'• Ce genre est remarquable par son axe columellaire autour 

 duquel se deroulent deux lamelles tres saillantes, dont la plus 

 forte s'apercoit sur tout le prolongemeiit de I'axe, grace a I'extreme 

 tenuite du test ; par son dernier tour meplan a la partie mediane 

 et sur une etroite zone circumsuturale, et caracterise par deux 

 angulosites, dont I'une superieure separe la zone meplane-tecti- 

 forme du pourtour de la suture de la surface plane mediane, et dont 

 I'autre limite cette surface a la partie inferieure.'' (Jousseaume.) 



" A genus of uncertain position, possibly near C'alaxis, as 

 M. Jousseaume believes, but differing in the longer spire and the 

 strong development of a spiral lamella superposed upon the upper 

 part of the columella. There are no parietal or palatal lamellae. 

 The internal axis, as seen through the shell, is strongly spiral, the 

 upper lamella penetrating deeply, according to Jousseaume. It 

 is possible, however, that the spiral condition is due to the basal 

 lamella." (Pilshnj.) 



440. Digoniaxis cingalensis, Benson. 



Spira.vis citn/alensis, Benson, A. M. N. H. ser. 3, xi, 18G3, p. 91 ; 

 Pfeitier, Mon. Helic. Viv. vi, 1868, p. 191 : Uanley & Theobald, 

 Conch. Ind. 1874, pi. 79, fig. 1. 



