216 PARTULA, RAIATEA AND TAHAA. 



the white sutural band which is constant in that species." 

 (Eve.}. 



Society Islands (Mus. Cuming). 



Partula solidula RVE., Conch. Icon, vi, pi. 4, f. 22, May, 

 1850. ?? PFB., Conchyl. Cab. p. 269, pi. 64, f. 15, 16; pi. 65, 

 f . 12, 13 ; Monogr. iii, 452. 



This may 'be identical with one of the described forms of 

 P. dentifera or imperforata, such as virginea, or more likely 

 raiatensis ; but perhaps representing another race of the same 

 stock, not rediscovered by Mr. Garrett. Pfeiffer's figures 

 evidently do not apply to exactly the same form. Hartman 

 expressed the idea that solidula is a large form of P. lutea. 

 Garrett compares solidula to compact a Pse., from which it 

 differs by the parietal tooth. Description and figure from 

 Reeve. 



24. P. DENTIFERA Pfeiflfer. PL 20, figs. 4, 9. 



The shell is narrowly umbilicate, ovate-conic, solid, nearly 

 smooth, somewhat shining, pale straw colored. Spire conic, 

 the apex rather acute, suture margined. Whorls 5%, the 

 upper ones flat, the penultimate more convex, the last slightly 

 shorter than the spire, convex, impressed in the middle an- 

 teriorly. Columella subvertical, slightly folded. Aperture 

 slightly oblique, narrow, obversely ear-shaped. Peristome 

 white, strongly thickened, built forward; its margins sub- 

 parallel, the right margin deeply curved above, and bearing 

 a strong, acute, tooth-like tubercle in the middle. Length 

 211/2, diam. 10, aperture 11 mm. (Pfr.). 



Raiatea: The specific centre of the type of this species is 

 in the large valley of Vairahi, on the east coast of Raiatea, 

 where it occurs in vast numbers on foliage in company with 

 the typical P. hebe. It has not spread at all to the south- 

 ward, but a variety occurs in an adjacent valley on the other 

 side. ( Garrett) . 



Partula dentifera PFEIFFER, Proc. Zool. Soe., 1852, p. 85; 

 Mon. Hel., iii, p. 447; Conchyl. Cab. p. 264, pi. 44, f. 14, 15. 

 PEASE, Proc. Zool. Soc., 1871, p. 473. SCHMELTZ, Cat. Mus. 



