PARTULA, CAROLINE ISLANDS. 309 



cately decussate, chestnut-colored. Spire rather short, ob- 

 tuse. Whorls 5, convex, the last swollen, longer than the 

 spire. Columella nearly straight. Aperture ample, semi- 

 oval, bluish inside; peristome white within, the margins re- 

 mote, right margin expanded, columellar margin broadly re- 

 flexed, spreading. Length 26, diam. 15 mm. ; aperture 14 x 8 

 mm. inside. (Pfr.}. 



Caroline Islands: Ponape, in the ruins of Nanmatal 

 (Finsch) ; in the hills (Etscheid, Kubary). 



Bulimus guamensis PFR., in Philippi, Abbild. a. Beschrei'b. 

 neuer Conch, ii, p. 113, Bulimus, pi. 4, f. 9 (August, 1846) ; 

 Monogr. ii, 73. Partula guamensis PFR., Monogr. iii, 446. 

 REEVE, Conch. Icon, vi, pi. 1, f. 4 (1849). DESK., in Fer., 

 Histoire p. 124, pi. 158, f . 3-6. Partula rufa Less., v. MARTENS, 

 Conchologis'che Mittheilungen 1881, i, p. 95, pi. 17, f. 12-16. 

 -[Partula] ponapensis HARTMAN, Proc. Acad. Nat. Sci. 

 Phila., 1885, p. 221, substitute for guamensis Pfr. Partula 

 rufa subsp. montana v. MOELLENDORFF, The Journal of 

 Malacology vii, p. 112 (March 24, 1900), substitute for 

 guamensis Pfr. Partula brumalis REEVE, Conch. Icon, vi, pi. 

 1,12 (May, 1849). 



A large, bulimoid species having much the appearance of a 

 small Borus. Pfeiffer's type, figured in Philippi 's Abbil- 

 dungen (copied in my fig. 9), is the rather obese form further 

 illustrated by figs. 7 and 8. The embryonic shell is very 

 densely striate spirally but is usually worn in adult shells. 

 The rest of the whorls have distinct spiral striae, which in the 

 typical form are deeply engraved throughout, but on some 

 examples they 'become rather weak on the last whorl. The 

 ample aperture is dull purplish inside in some examples, white 

 in others. The white lip is reflexed, and a little thickened 

 within. The chestnut color of the shell is sometimes varied 

 by a faintly darker line at the periphery. Examples measure : 



Length 27, diam. 18.3, aperture 16 x 11.8 mm. ; whorls 5 l / 3 . 



Length 27, diam. 17, aperture 15.5 x 11 mm. ; whorls 5y 2 . 



Length 28, diam. 17, aperture 15 x 12 mm. ; whorls 5y 2 . 



The form called brumalis by Reeve (pi. 38, fig. 10, copied 



