PARTULA, SOLOMON ISLANDS. 297 



of Land and Marine Shells from Australia and the adjacent 

 islands, 1868, p. 46, no. 152, name only. HARTMAN Proc. 

 A. N. S. Phila. 1885, p. 217; 1886, p. 32, pi. 2, f. 7. P. 

 gracilior Pease in coll. according to Dr. Cox's label. 



This shell stands near P. pellucida Hartm. but differs by 

 its longer, less obtuse spire. 



Dip to the beginning of the last whorl the shell is biconic, 

 acutely angular or earinate at the periphery, the angle bear- 

 ing a projecting cord wider than the other intervals of the 

 spiral sculpture. The axis is perforate at all stages of 

 growth. 



P. micans has the last whorl less compressed laterally, and 

 the lip is much less thickened within. 



91. P. PELLUCIDA Pease. PL 36, figs. 5, 6. 



Shell oblong-ovate, narrowly perforate, thin, pellucid, 

 granulose by the intersection of longitudinal and transverse 

 striae. Spire conic. Suture impressed, margined. Whorls 

 4 IX., plano-convex, the last hardly one-half the length of 

 the s'hell. Aperture vertical, ovate. Peristome somewhat 

 thickened, white, slightly expanded. Columella slightly di- 

 lated above, nearly straight. Whitish- corneous. Length 12, 

 diam. 6y 2 mm.; aperture 5 x 3y 2 mm - (Pease). 



Solomon Is.: Guadalcanar (John Brazier). 



Partula pellucida PSE., P. Z. S. 1871, p. 457. PER. Monogr. 

 viii, 199. HARTMAN, Proc. A. N. S. P. 1886, p. 35, pi. 2, f. 17. 



"It is the nearest allied to P. minuta Pfr. It differs in 

 being more slender, thinner, the spire elongate, the aperture 

 smaller, the surface more distinctly granulose and the suture 

 marginate" (Pease). 



One adult and two young examples in the Hartman collec- 

 tion, no. 4246 Carnegie Museum, are stated on the label to 

 have been compared with "Brazier's type example." They 

 are labelled "Ysabel, Solomon Is. (coll. Cox)." The adult 

 shell is figured (fig. 6). It is white under a very thin, clear 

 corneous cuticle which is partly worn off in ragged streaks. 

 The surface is rather coarsely sculptured with close wavy 



