208 AMPHIDROMUS, GROUP XIII. 



p. 151 (1892) A. latistrigatus Schepmann, FULTON, Ann. Mag. 

 N. H. (6), xvii, p. 89, pi. 7, f. 1 (1896). 



** This species differs from all the allied ones, by the broad flames, 

 and the fine rose-color of the aperture ; this last peculiarity is also 

 found in A. suspectus Martens, A. annce Martens and in the next 

 species, but they differ in so many other respects that they may be 

 easily recognized. 



" The measurements taken from specimens from Massoe, show that 

 they vary in form. . In nearly all the specimens the flames of the 

 upper whorls are traversed by a narrow zone of the ground color ; 

 the yellow color of the last whorl is more or less bright. 



" A juvenile specimen from Massoe has the space near the umbi- 

 licus rose-color, with two brown spiral bands beneath the periphery. 

 This and two adult specimens from the same locality, are in the 

 finest condition, the other are more or less bleached " (Schepm.}. 



A. SUMBAENSIS Fulton. PI. 67, figs. 5, 6, 7, 8. 



Shell sinistral, perforate or umbilicate, rather solid, opaque, smooth- 

 ish. Whitish, becoming cream or pale yellow on the base and pink on 

 the upper whorls, 1^ earliest uniform reddish-purple with a black tip, 

 the subsequent whorls striped with reddish-brown changing on the last 

 whorl or two to bluish-gray, these stripes rarely bifurcate above, often 

 showing traces of spiral color-lines, not reaching quite to the white- 

 edged suture, and on the early whorls generally cut by an indistinct 

 median pale spiral. Whorls 6-6^, rather convex. Aperture ovate 

 white with bluish stripes within, the lip rather narrowly expanded* 

 purple-rose colored; columella purple, dilated above; parietal callus 

 thin, rose tinted. 



Length 34, diam. 16 mill. (type). 



Length 34^, diam. 17, longest axis of aperture 17 mill. 



Length 26^, diam. 13J, longest axis of aperture 13^ mill. 



Sumba Island (Fulton). 



A. sumbaensis FULTON, Ann. Mag. N. H. (6), xviii, p. 102 (July,. 

 1896); xx, p. 214, pi. 6, f. 1 (1897). 



Allied to A. latestrigatus Schepman, but narrower, with darker 

 apical whorls, and less solid. 



A. CONSOBRINUS Fulton. PI. 67, fig. 9. 



"Shell sinistral, oblong-conic, slightly perforate; whorls 6, con- 



