APPENDIX. 195 



A somewhat lengthy discussion of the character of the egg-shells 

 ofBorus will be found in Malak. Blatter, xxv, p. 176. 



S. HUASCAKI Tschudi (p. 16). Add : PI. 16, fig. 25. 



S. GRANULOSUS Rang (p. 20). Another synonym is: Variety of 

 Helix ovalis, MAWE. Travels in the Interior of Brazil, 1812, p. 

 199, third plate, upper 3 figs. 



S. OVATUS Mu'ller (p. 24). Add to synonyms : Helix ovalis Linn., 

 MAWE, Trav. Inter. Brazil, third plate, lower left fig. Lymncea 

 imperialis LEA, Obs. Gen. Unio, i, p. 193, pi. 19, f. 73 (young 



shell). 



S. PROCLIVIS von Martens. 



Shell subimperforate, ovate-oblong, somewhat unequally striatul- 

 ate, sparsely and subtly malleolate ; rather shining, yellow-brown, 

 the suture whitish, irregularly undulating. Whorls 6, the first 

 smooth, whitish, immersed, second and third whorls very convex, 

 rather coarsely ribbed, above whitish and then brown ; following 

 whorls rapidly increasing, the next-to-the-last whorl large, little con- 

 vex ; latter half of the last whorl very obliquely descending, the base 

 rotund. 



Aperture little oblique, ovate; peristome thickened, narrowly re- 

 flexed, roseate ; columellar margin within spirally twisting, whitish, 

 outwardly dilated, appressed and roseate; parietal callus distinct, 

 rose-white. 



Alt. 89, greater diam. 42, lesser 35 mill. ; aperture 45 mill, long ; 

 width including peristome 34, excluding peristome 25 mill. 



Mundo Nova, Prov. Rio Grande do Sal, Brazil. 



Bulimus proclivis von MARTENS, Sitzungs-Bericht der Gesellschaft 

 Naturforschender Freunde zu Berlin, 1888, no. 4, p. 64 (April 17), 

 Bulimus lacunosus Orb., MARTENS, Malak. Bl., xv, 1868, p. 177 

 ("Urwalde bei Rodersberg ") B. Iheringi CLESSIN, Malak. Bl. 

 (n. F.),p. 167. 



The snail collected by Dr. Heusel, and compared with Bui. lacuno- 

 $us in the Malakozoologische Blatter, 1868, p. 177, is this same species 

 in less well preserved condition. It belongs, according to the sculp- 

 ture of the earlier whorls, in the immediate group of Bui. ovatus, and 

 holds a relation to that species similar to that sustained by B. accel- 

 erans Marts, toward B. valenciennesi. (Martens). 



