86 Mr. H. Fulton on the 



Some specimens of quadrasi are yellow, with only a trace 

 of the bright green colour found in typical specimens, others 

 are pale green without the pink sutural band. 



A. quadrasi, var. solida, Fulton. (PI. V. fig. 16.) 



Loc. Palawan. 



Smaller and more solid than typical quadrasi, subangulate 

 at the periphery : last whorl either white, reddish brown, or 

 yellow, with a broad white spiral band just below the suture ; 

 upper whorls either plain white or with narrow, oblique, 

 interrupted light brown stripes, 



46. A. versicolor, Fulton. 



=quadrasi, var., Smith (pars), Ann. & Mag. Nat. Hist. 1893, vol. xi. 

 p. 351, pi. xviii. figs. 11 & 13. 



Loc. Balabac Island. 



Shell sinistral, either oblong or ovate-conic, imperforate ; 

 whorls 6| to 7, convex, obliquely striate ; apex dark brown ; 

 upper whorls either plain white or ornamented with forked 

 dark brown markings ; last whorl either yellow or cream- 

 colour, often with a very broad flame of bright green behind 

 the aperture ; columella somewhat curved, thickened and 

 expanded at upper part, white or (rarely) pink ; lip white, 

 expanded and slightly reflected. 



Long. 43 millim., maj. diam. 22 millim. 

 „ 47 „ „ 20 „ 



,i 44 „ „ 22 „ 



„ 40 „ „ 21 „ 



„ 35 „ „ 18 „ 



An extremely variable species both in form and colora- 

 tion ; chiefly distinguished from Lindstedti and quadrasi by 

 its broader form in proportion to its length, being less solid, 

 and by its coloration. 



47. A. dubius, Fulton. (PI. VI. figs. 1,1a.) 



Loc. Balabac Island. 



Shell sinistral, ovate to oblong-conic, obliquely striate, 

 subangulate at the periphery, imperforate ; whorls 6, con- 

 vex, first three semitransparent, lower whorls cream, with 

 oblique bluish-grey stripes, which are more or less branched ; 

 a spiral yellow band at lower part of last whorl, last half-whorl 

 either bluish grey or of a greenish tint ; apex dark brown ; 

 columella thin, white, slightly expanded above ; lip expanded 

 and somewhat reflected, white ; interior of aperture dark 

 brown. 



