AMPHIDROMUS, GROUP XIV. 209 



vex, yellow below fading to dirty white above, first three whorls of a 

 semi-transparent flesh color, tipped at the apex with dark brown, last 

 whorl obsoletely keeled at the periphery ; there is a narrow greenish- 

 blue band just above the umbilical area, which is continued spirally 

 upon the parietal wall ; lip and columella pale purple, connected by 

 a thin reddish-brown callus; lip slightly expanded and reflected; in- 

 terior of aperture white. Long. 32 mill., maj. diam. 15 mill." 

 (Fulton). South f lores Island (Everett); Sumba Island. 



A. consobrinus FULTON, Ann. Mag. N. H. (6), xx, p. 211, pi. 6, 

 f. 3 (August, 1897). 



Probably a variety of A. sumbaensis, but as I have not seen speci- 

 mens I follow Fulton's estimate of its rank. 



" Some specimens have an additional narrow spiral band just be- 

 low the periphery. This species is very closely allied to my A. sum- 

 baensis, but can easily be distinguished by its different coloration. 

 Type in British Museum " (Fulton). 



14. Group of A. inconstans. 

 A. INCONSTANS Fulton. PI. 67, figs. 12-17. 



Shell sinistral, perforate, oblong-conic, glossy, striatulate. Ground 

 color yellow, fading to white on the spire, the early whorls and 

 apex uniform white; typically the last whorl \u\sfour spiral bands, the 

 upper two composed of squarish blackish-chestnut spots alternating with 

 pale intervals, and ascending the spire ; the lower two bands continu- 

 ous or irregularly interrupted. Or in some shells (a) all bands are 

 absent, the shell yellow, or (b) with a single band below the periph- 

 ery, or (c) with two basal bands. Spire slender, the summit very 

 obtuse. Whorls about G, slightly convex. Aperture oblique, effuse 

 at the base, white or banded within. Colurnella straight, rounded, 

 convexly reflexed and rolled back above, tapering and very slender 

 at its base, usually with a more or less pronounced angle at its junc- 

 tion with the basal lip. Parietal callus a mere translucent film. 



Length 38, diam. 19, aperture 19 mill. (type). 



Length 35, diam. 17, aperture 16^ mill. 



Length 30J, diam. 15^, aperture 15J mill. 



Length 29, diam. 16, aperture 16 mill. 



Allor { Ombai) Island, north of Timor ; Pantar /., west of Allor ; 

 Pur a (Poera) Island (Everett). 



A. inconstans FULTON, Proc. Malac. Soc, Lond., iii, p. 10, fig. in 

 14 



