86 Mr. H. Fulton on the 



Some specimens of quadrasi are yellov/, witli 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 hand 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 „ 



„ 44 „ „ 22 „ 



„ 40 „ „ 21 „ 



An extremely variable species both in form and colora- 

 tion ; chiefly distinguished from Lindstedti &nd 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, 1 a.) 



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. 



