PARTULA, SOCIETY IS. 257 



Length 18.8, diam. 11, aperture 10.5 mm. 



Length 18, diam. 11.5, aperture, 10.8 mm. 



Others are more ventricose : 



Length 19.8, diam. 12.2, aperture 11.5 mm. 



Length 17.2, diam. 11, aperture 10 mm. 



Length 17.4, diam. 11, aperture 9% mm. 



According to Garrett, "notwithstanding its wide range 

 over the island, it has not developed a single local variety. 

 In fact it exhibits less variation than some of the species at 

 the other islands which are restricted to single valleys. " 



Dr. Hartman and Andrew Garrett are agreed that Partula 

 lilacina Pfr. is a color-phase of P. lutea. A figure of the 

 type specimen in the British Museum is given, pi. 41, fig. 14. 



6. Species of unknown habitats, probably from the Society Is. 



The following will probably prove to be forms of some of 

 the species already known from the Society Islands; but 

 their status can only be determined by examination of the 

 type specimens. 



46. P. STOLIDA Pease. 



"Shell elongate, ovate, dextral, rather dull, umbilicate, 

 very finely roughened longitudinally and indistinctly under 

 the lens striated transversely; whorls 5, convex; suture im- 

 pressed; aperture elongately oval, rather small, not one- 

 half the length of the shell, dentate, rarely edentate; lip 

 somewhat roundly thickened, chestnut or olivaceous, ob- 

 scurely and very finely striped longitudinally. Length 20, 

 diam. 10% mm. Tahitian archipelago. Terrestrial. " 

 (Pease) . 



Partula stolida PEASE, Amer. Jour. Conch., 1866, p. 198; 

 Proc. Zool. Soc., 1871, p. 473. PFEIFFER, Mon. Hel. Viv. 

 viii, p. 195. 



Garrett, in his work of 1884, identified specimens of P. 

 compressa as stolida ; but they cannot be made to agree with 

 Pease's description. Pease himself, in 1871, gives the locality 

 Raiatea; yet his testimony is of doubtful value. Perhaps 



