PARTULA, SAMOAN ISLANDS. 267 



' 



Length 25, diam. 14, aperture 14.1 mm. 



Length 23, diam. 13.5, aperture 14 mm. 



Length 22, diam. 13, aperture 13 mm. 



Samoan Is.: Apia, Upolu (Sir Charles Eliot), co-types no. 

 77306 A. N. S. P. 



Partula conica GARRETT, Proc. A. N. S. Phila. 1887, p. 134. 

 -IPartula upolensis Mousson, Schrneltz, according to GAR- 

 RETT, Proc. A. N. S. Phila. 1887, p. 134, in synonymy of 

 P. conica, Gld. ? P. cepolensis Mouss., SCHAUFUSS, Paetel 

 Catal. p. 83, nude name. 



This is a more lengthened shell than P. abbreviate. 



56. P. ABBREVIATA Mousson. PI. 32, figs. 15, 16. 



Shell rimate-umbilicate, ovate, thin, striate, closely sculp- 

 tured throughout with minute wavy lines, pale corneous. 

 Spire eonvexly-conic, obtuse and worn bare at the summit; 

 suture little impressed, white, generally with a denuded line. 

 Whorls 5 to 5y 2 , rapidly increasing, a little convex, the last 

 whorl inflated, rounded, a little ascending, rather swollen 

 basally. Aperture sub vertical, (15 degrees with the axis), 

 large, two-thirds the total length. Peristome acute, widely 

 and flatly reflexed, white, the margins remote, joined by a 

 scarcely visible callus; right margin forming a long arch, 

 columellar margin widely reflexed, slightly impressed at the 

 insertion; columella somewhat folded deep within. Length 

 21, diam. 14 mm. (Mouss.). 



Samoan Is. : Tutuila. 



Partula abbreviata Mouss., Journ. de Conchyl. 1869, p. 

 339, pi. 14, f. 7. 



This form seems to be known by the original lot only. It 

 stands close to P. canalis and P. conica, having spiral sculp- 

 ture like the latter, and coloration more like canalis. The 

 cuticle is readily deciduous on the summit and in a band 

 along the suture. The compact, subglobose shape distin- 

 guishes it from allied species. It is shorter and wider than 

 P. stevensoniana, and the aperture is larger. 



