322 LEPTINARIA, S.-G. NEOSUBULINA. 



tion is only 5 mm. long (instead of 15), its diameter 3 (in- 

 stead of 5), the aperture 2 long and 1% in diameter; whorls 

 barely 5 (instead of 7-8). The shell is distinctly perforate 

 (this not being the case in L. elisa), a character not men- 

 tioned by Canon Tristram; the columellar margin is much 

 more feeble, and the spiral winding fold is separated by a 

 light depression from the proper columellar margin. Al- 

 though I am not quite sure that these specimens belong to 

 the same species, I give, nevertheless, a figure of one of 

 them" (v. Mts.). 



Section Neosubulina E. A. Smith. 



Proc. Malac. Soc. London, iii, p. 115 (December, 1898), for 

 N. harterti. 



Shell imperf orate, turrite, of 8 to 10 convex whorls; aper- 

 ture small, with the columella more or less truncate, and 

 having a long entering parietal lamella. Badula with small 

 central and tricuspid lateral teeth. Type L. harterti. 



This group differs from typical Leptinaria only in its tur- 

 rite instead of ovate shape ; and from the long Leptinarias it 

 differs 'by having a well developed parietal lamella. The 

 dentition is practically the same as that -of Leptinaria. I 

 am unable to follow Mr. Smith in giving the group generic 

 rank. Its mode of reproduction is unknown. 



42. L. GLOYNII (Gibbons). PI. 47, fig. 19. 



4 'Shell subcylindrical, elongate, narrow, rather thin, semi- 

 transparent, dull yellowish-horn color, closely and rather 

 coarsely striate by lines of growth; epidermis thin and dis- 

 tinct; whorls 9-10, flattened, the first 4 gradually increasing 

 the body-whorl rather the longest, the middle turns equal in 

 size; spire shortly pointed; suture narrow, well marked; 

 aperture ovate, rounded in front, narrow and angulate be- 

 hind, outer lip thin and direct, gently curved, columella 

 somewhat callous, arched with a sharper curve, ending 

 abruptly a little behind anterior end of aperture; a thin 

 lamina winds spirally down axis of shell, appearing in the 

 aperture as a low, thin tooth, situated rather behind the 

 middle of the columella. Length 13, diam. 3 mm. Animal 

 pale grey, tentacles darker grey" (Gibbons). 



