150 LAND- AND FRESHWATER SHELLS. 



from hills and from the rivershore near Waingapoe , mixed 

 with sea-shells, and from a brook between Pensadoe Kopol 

 and 'N datas , Soemba. 



From each of the above mentioned localities one or two 

 specimens are collected ; they vary much in size, the largest 

 diameter being from 16 to 27 mill. 



8. Helix solorensis v. Martens. 



Martens, Ostas. Landschn. p. 277; Taf. 17, fig. 3. 



Locality: Lamakera, Solor. 



The specimens have a largest diameter from 16 to 17 

 millim. and are therefore slightly smaller than the smallest 

 specimens recorded by von Martens. They vary much in 

 the number of the spiral bands. 



9. Heli a; supracostulata, n. sp. 

 (Plate 6, fig. 1). 



Shell globosely depressed , with a covered umbilicus , 

 only perceptible as a very narrow slit, solid, upper part 

 distinctly plicately ribbed , base rather smooth ; whitish , 

 with a rather broad dark brown band at the periphery 

 and a narrow one near the sutures, besides a number of 

 paler bands above and below, varying much in the 

 individuals; apex obtusely convex; whorls 4^/2 , slightly 

 convex , last whorl descending abruptly in front. Aperture 

 oblique , rounded ; lip slightly expanded , thickened , white ; 

 columellar margin covering nearly completely the umbilicus , 

 with a toothlike projection, outer margin near the peri- 

 pherical band with a second very faint tooth , margins 

 approximating , united by a thin callosity. 



Diam. maj. H^/j, min. 12^/3, alt. 11 mill. 

 » ^ 14, » 12, » 10 » 

 » » 13, » lö^/g» » 9 » 

 » » 12, » 11, » 9I/2 » 

 Localities: Ka-Tokawai, East Soemba, and » Soemba", 

 without more definite locality. 



Notes from the Leyden ^useura, "Vol. XIV. 



