AMPHIDROMUti, GROUP XVI. 2l3 



A. SUSPECTUS (von Martens). PI. Go, fig. 30. 



Shell sinistral, ovate-conic, rather solid, lightly striatulate, glossy ; 

 buff-whitish, with two black bands on the base and two sulphur-yellow 

 ones, the umbilical region roseate, apex broadly marked with brown- 

 black. Whorls 6, rather convex. Aperture ovate, three-sevenths to 

 four-ninths the length of the shell, peristome moderately thick, nar- 

 rowly expanded, violaceous-brown ; columellar margin broadly 

 dilated, reflexed, paler ; parietal callus forming a little tooth above at 

 the insertion of the lip. (Mart.) 



Alt. 31, di;;m. 17^, aperture 14 mill. 



Alt. 27-g, diam. 14, aperture 13 mill. 



Alt. 24|, diam. 12, aperture 11-| mill. 



Alt. 34^, diam 18, aperture 16^ mill. 



Timor : Knpang, in company with A. contrarius (Martens, Wich- 

 mann. 



Bulimus suspectus MARTENS, Monatsber. Akad. Wissensch., Ber- 

 lin, 1864, p. 526 ; 1877, p. 279 ; Ostas. Zool. Landschn., p. 362, pi 

 21, f. 8. PFR., Monogr., vi, p. 27. A. suspectus SCHEPMAN, Notes 

 Leyden Mus., xiv, 1892, p. 153 (SoembaL). MARTENS, in Weber's 

 Zool. Ergebnisse einer Reise in Niederlandisch Ost-Indien, ii, p. 241. 

 FULTON, Ann. Mas. X. II. (6), xvii, p. 78, with var. a/bolabiata, 

 p. 79, pi. 6, f. 9. 



Close to A. contrarius in having a nodule at the posterior angle of 

 the aperture, but, as Fulton says, it " differs in coloration, being 

 white above with two dark brown and two pale yellow bands on the 

 last whorl, the topmost yellow band being continued above ; lip and 

 columella pink." I think it would be more justly ranked as a variety 

 of A. contrarius. 



Schepman's single young specimen from Sumba Island may not be 

 this species, as the characteristic tubercle at the mouth angle is not 

 developed until maturity. 



Var. albolabialus Fulton. PI. Go, fig. 31. 



" Differs from suspectus in being larger, in having a -ir/tite lip ami. 

 columella, and only two dark-brown bands on last whorl, the upper 

 being continued at the suture of the upper whorls." ( J-'ul/n/t.) Timor. 



1G. Crimp of A. colnmellttns. 



A. COLUMELLARIS Moellendorff. PI. 65, figs. 32, 33. 



Shell sinistral, narrowly perforate, slenderly conic-oblong, rather 



