\ 



HELIX-PAPUINA. 65 



where the bands terminate), outer lip broadly expanded, columellar 

 lip broad, dilated, about half closing the umbilicus. 

 Alt. 17, greater diam. 23, lesser 18* mill. 



Eddy stone and Simbo Islands, Solomon Group. 



H. eddystonensis REEVE, Conch. Icon. f. 1384 ; 1854. DOHRN, 

 in Conchy 1. Cab. p. 568, t. 168, f. 5, 6. H. motacilla SMITH, P. Z. 

 S. 1885, p. 591. 



Usually has two rather narrow brown bands, bounding a peripheral 

 whitish zone. There is an ill-defined opaque whitish band below 

 the suture. The variations include forms with one or several ad- 

 ditional narrow bands above and below, and some specimens are 

 bandless, unicolored straw-yellow. 



H. GELATA Cox. PI. 10, figs. 93, 94. 



Shell conoidly depressed, rather narrowly umbilicated, of a dark 

 brown color, profusely ornamented and zoned with opaque white, 

 apex almost black, transversely striated from left to right with very 

 fine strait-strise, which are decussated above with slightly undulating 

 coarser stride from right to left, at the base these undulating striae 

 become longitudinal ; whorls 5, convex, suture deep ; base convex ; 

 aperture rotundately lunar, dark chestnut within ; lip white, margins 

 somewhat approximating, joined by a thin callus ; upper margin 

 broadly expanded, basal reflected, columellar margin triangularly 

 dilated and reflexed, half concealing the umbilicus. (Cox.) 



Diam. greatest 0'87, least 0*71, height 0'68 of an inch. 



A small island near Eddystone Id., Solomon Group. 



H. gelata Cox., P. Z. S. 1873, p. 149, t. 16, f. 5a, 5b. BRAZIER, 

 Proc. Linn. Soc. N. S. Wales, v, p. 446, (with var. maddocksi.) 



Closely allied to and perhaps a variety of H. eddystonensis, from 

 which the dark apical whorls and more variegated color separate it. 

 Cox says : 



I was at first disposed to look upon it as a variety of Helix eddy- 

 stonensis (Reeve), but the sculpture of this shell appears to me to be 

 always coarser, and the surface invariably more or less covered with 

 a thick white, opaque enamel, unlike the thin epidermis which covers 

 H. eddystonensis. Its dark, almost black, apex and white zoned 

 and irregularly ornamented body show in strong contrast, and 

 resemble more some of the Philippine Island species than any of those 

 found in the Solomon Islands. This species is uniformly of a smaller 

 5 



