XXV11 
HELIX RUBRICATA, Gould ; this shell is considered as a synonym 
by Pfeiffer of— 
HELIX XOULETI, Le Guill. 
Helix Nouleti, Lo Guill.; Pfr., M.H.Y., vol. 4, p. 58; vol. 5, p. 11G, 
Xo. 471; Reeve, Conch. Ic., No. 405, pi. 77. Helix (Nanina) 
rubricate, Gould, Expcd. Sh., 1840, p. 25 ; Pfr., M.H.Y., vol. 1, 
p. 69 ; vol. 3, p. 71. Helix inornata, Homb. and Jacq., Yoy. Pol. 
Sud, Zool., vol. 5, p. 7, pi. 4, figs. 11-14. Nanina, Nouleti, Gray, 
Cat. Pulm., p. 128. Nanina rubricata, Gould, Exped. Sb., 1851, 
p. 29, pi. 5, fig. GO. Nanina (llemipleeta), H. and A. Adams, 
Gen., 11, p. 223. 
Shet.l sub-perforated, rather semi-globose, solid, closely obliquely striated 
above, somewhat decussated with spiral strife, shining, black-fuscous; 
spire sub-conoidal, inclining to rufous; whorls 5.',-, rather convex, 
gradually increasing, the last wider, rotund, not descending anteriorly, 
somewhat smooth beneath (slightly marked with radiating strife); 
aperture slightly oblique, lunar, lurid within; peristome simple, right 
margin straight, sub-arcuated in front, columellar margin callous, bent 
downwards, on the upper part shortly reflexed upon the perforation. 
Diam., greatest, 29; least, 25 ; height, 15 mill. 
Hab., Viti and Solomon Islands. 
HELIX YITREA, Ferrusac. 
Helix vitrea, Ferr., Pfr., M.H.V., vol. 5, p. 329, Xo. 2165, and p. 501. 
Papuina vitrea, Wallace, P.Z.S., 1865, p. 411. Helix albula, 
Lo Guill., Pfr., M.H.Y., vol. 1, p. 328 ; vol. 5, p. 332, Xo. 2179, 
and p. 501, Xo. 2165. 
Shell umbilicated, depressly-trochiformed, acutely earinated, rather 
thin, very closely and finely striated, under a powerful lens minutely 
granulated, vitriously-whitish (at the keel lined with rufous); spire 
conoidal, rather acute; whorls 4 £’, flattisli, the last slightly descending 
anteriorly, slightly convex at the base, very distinctly r-adiately-striated ; 
umbilicus pervious, somewhat funnel-formed; aperture oblique, 
depressed, elliptically-lunar; peristome somewhat broadly expanded, 
rather beaked at the keel, columellar margin greatly dilated, spread 
open. 
Diam., greatest, 29; least, 23J-; height, 13 mill. 
Hab., in the islands Ternati, Gilolo, Batchian. 
