222 PARTULA, RAIATEA AND TAHAA. 



much more frequently rose-red. It is, I think, more nearly 

 related to the dentated virginea, inhabiting the neighboring 

 island, than to dentifera." This conclusion is fully sup- 

 ported by the series before me, received from Pease, Garrett 

 and others. 



26a. P. i. VIRGINEA 'Pse.' Garrett. PI. 20, figs. 18, 19. 



"Shell compressly umbilicated, solid, oblong-conic, some- 

 what shining, yellowish corneous or light fulvous brown; 

 spire convexly conical, half the length of the shell; suture 

 margined by a whitish line; whorls 5-51/2, slightly convex; 

 aperture subvertical, oblong, pbauriform, rounded below and 

 much contracted by the strongly labiated peristome ; parietal 

 wall with a white tubercular tooth which is rarely absent; 

 peristome white, sometimes tinged with carnelian, widely ex- 

 panded, subplanulate, slightly contracted above, and the mar- 

 gins frequently nearly united by a ridge of callus; colu- 

 mellar lip vertical, more or less distinctly nodose. Length 

 18, diam. 9 mm." (Garrett). 



"Form a. Uniform chestnut-brown. Not uncommon. 



"Form 6. Yellowish corneous, with a basal and sutural 

 chestnut-brown band. Very rare." (Garrett). 



Raiatea: The specific centre is in Vaipiti valley, on the 

 west coast of Tahaa, where it occurs in the greatest pro- 

 fusion on the foliage of shrubs. It has extended its range 

 to the northward as far as Murifanna on the north coast, 

 which latter is the limit of the western range of P. umbili- 

 cata. ( Garrett) . 



Partula virginea PEASE, MS. BINNEY, Proc. Acad. Nat. 

 Sei. Phil., 1875, pp. 245, 247, pi. 19, fig. 8 (anatomy). 

 SCHMELTZ, Cat. Mus. Godeff., vi, p. 81. HARTMAN, Cat. 

 Part., p. 8; Obs. Gen. Part., Bull. Mus. Comp. Zool., ix, p. 

 189. GARRETT, Journ. A. N. S. Phila. ix, 1884, p. 61, pi. 3, 

 f. 54. Partula solidula var., CARPENTER, Proc. Zool. Soc., 

 1864, p. 675. PEASE, Proc. Zool. Soc., 1871, p. 473 ; not of 

 Reeve. 



This form is practically identical with the raiatensis form 



