338 EAST INDIAN NESOPUP/E. 



Section Nesopupa proper. 

 35. NESOPUPA MOLUCCANA (Boettger). PI. 32, figs. 11, 12. 



Shell small, with long, deep rima, globose-ovate, brown, 

 silky. Spire short with convex sides, the apex obtuse. Whorls 

 4, a little convex, separated by a distinct suture, striate and 

 moreover ornamented with delicate, membranous, very widely 

 separated riblets, the last whorl distinctly compressed at the 

 base, ascending above, towards the aperture dilated funnel- 

 like, and with a long, rectangular lateral impression ; three- 

 sevenths the total length of the shell. The aperture is large, 

 subvertical, truncate-oval, slightly impressed at the sinulus, 

 with 6 or 7 teeth. Peristome expanded, thickened below the 

 sinulus, calloused, violaceous, the margins joined by a light 

 callus. Angular lamella very strong, emerging, joined to the 

 margin of the peristome, curved, parallel within with the 

 strong, receding parietal lamella; one acute palatal tooth 

 deeper in the region of the sinulus more distinct, the others, 

 2 or 3 parietals | palatals ] and one columellar very deeply 

 placed, scarcely visible. 



Length 1%, diam. 1%, alt. and width of aperture % mm. 

 (Boettger). 



Moluccas: Ema, southern Amboina (Strubell). 



Vertigo (Ptychochilns) moluccana BTTG., Bericht Senck. 

 naturf. Ges., 1891, p. 269, pi. 3, figs. 11, lla. 



This species is remarkable for its short, broad shape, the 

 very strong angular and parietal lamellae, and the deep im- 

 mersion of the lower palatal and columellar. In the single 

 specimen seen, a topotype having Strubell's label, the cutic- 

 ular riblets are mainly wanting. The surface shows some 

 granulation or pitting in places, as in the Philippine species. 

 The last whorl has a horizontal impression behind the lip, 

 over the upper palatal fold, and further back there is a flat- 

 tening over the lower palatal, giving the base a pinched ap- 

 pearance. The very large parietal lamella curves towards 

 the columella inwardly. There is a small but erect supra- 

 palatal fold, and below it, more immersed, the laminar upper 

 palatal. A small very deeply immersed interpalatal fold and 



