PLACOSTYLUS, SOLOMON IS. 83 



P. MACFARLANDI (Brazier). PI. 35, figs. 21, 22. 



Shell perforate, oblong-fusiform, moderately solid; tawny-yellow 

 with many narrow chestnut streaks, or sometimes of an olivaceous- 

 brown tone ; the suture usually bordered by a white line, spire-da41 

 red, the apex self-amputated. Surface somewhat glossy, with slight 

 growth-wrinkles and a variable amount of coarse spiral malleation. 

 Whorls remaining about 5, slightly convex, the last oblong. 



Aperture white throughout; peristome white or slightly brown- 

 tinted at the outer edge, the outer lip somewhat sinuous, slowly 

 expanded below the middle, not reflexed, thickened within, the 

 thickening heavier at and below the middle. Columella suddenly 

 dilating at its junction with the body, produced inward in a very 

 strong, rounded, white, callous fold; parietal wall covered with a 

 strong white callus, which bears an oblong tubercle near the colu- 

 mellar fold. 



Length 76, diam. 31, longest axis of aperture 42| mill., whorls 5. 



Length 72, diam. 29, longest axis of aperture 40 mill., whorls 4^. 



Solomon Islands (Capt. Macfarland). 



Bulimm (Eumeco stylus] macfarlandi BRAZIER, Proc. Linn. Soc. 

 N. S. Wales, i, p. 4 (1875). B. macfarlandi Braz., PFR., Monogr., 

 viii, p. 604. Cox, P. L. S. N. S. Wales (2), ii, p. 1063, pi. 21, f. 7 



(1888) B. macfarlanei Cox, PAETEL, Catal., p. 98 Placostylus 



macfarlandi Braz., KOBELT, Conchy], Cab., p. 67, pi. 16, f. 3, 4. 

 Not P. macfarlandi Braz., KOBELT, t. c., p. 33, pi. 8, f. 2, 3. 



Somewhat allied to P. macgillivrayi, which it resembles in the 

 thickened, not reflexed lip, and strong folds, but distinct by its larger 

 size, wholly white aperture and some details of form. Moreover, 

 P. macfarlandi lacks the microscopic spiral striolation of the other 

 species. It is named for Captain Macfarland who collected the 

 original specimens, but of whom nothing else is known to me. 



Three specimens seen, as well as those figured by Cox and Kobelt, 

 are amputated at the apex. I have seen specimens bearing the MS. 

 name B. brodiei Braz. 



P. CALUS Smith. PI. 35, fig. 20. 



Shell elongate, perforate, reddish above, the last whorl paler, cov- 

 ered with a thin yellowish-olivaceous cuticle ; striated with delicate 

 growth lines, and under the lens seen to be microscopically and 

 irregularly striate transversely. Whorls 6, rapidly increasing, the. 



