ORTHALICUS. 201 



least in some specimens), with a sub-sutural band of alternating 

 chestnut and white spots, the rest of the whorls with a whitish hair- 

 line bordering the suture below, edged below by a chestnut line; 

 whorls convex, the last tapering below. 



Aperture slightly oblique, white inside, angular at the base of the 

 columella ; peristome blackish purple-brown, thickened within, con- 

 vex, broadly reflexed, and at the outer edge recurved and flesh- 

 tinted ; columella sub-vertical, with a fold or convexity near the 

 base and a small white fold above ; parietal and columellar callus 

 thick, blackish brown. 



Alt. 86, diam. 48, aperture with peristome 44 mill. long. 29 wide 



Alt. 79, diarn. 37, greatest length of aperture 38^ mill. (tig. 12). 



Leimabamba, Peru, on the road from Chachapoyas to Truxillo, 

 8000 feet elevation (Lobb, Baron). 



Bnlimas labeo Brod., REEVE, Conch. Icon., pi. 71, f. 207 b, pi. 

 72, f. 207 c PFR., Monogr. iii, p. 306. MORELET, Series Conchyl. 

 iii, p. 15(3. ? Orthalicus (Porphyrobaphe) labeo Brod., H. ADAMS, P. 

 Z. S. 1866, p. 443. Not Bitlinus labeo of Broderip. Of. SHUTTLE- 

 WORTH, Notitiai Malac., i, p. [89]. Porphyrobaphe vicaria FULTON, 

 Ann. Mag. Nat. Hist. (6), xviii, p. 103 (July, 1896). 



Formerly referred to B. labeo Brod. Shuttleworth in 1856 ex- 

 pressed the opinion that it was a distinct species, and Mr. Fulton has 

 recently separated it from that form, basing the new specific term 

 vicaria upon the specimen figured by Reeve (see pi. 44, rig. 18, 19). 

 This specimen is more obese than the one before me (pi. 48, fig. 12). 

 It " can be distinguished from sublabeo Ancey by its light olive color, 

 the almost entire absence of markings, and the dark purple-brown of 

 the columella and parietal wall." 



O. SHUTTLEWOKTHI ( Albers). PI. 41, figs. 1, 2. 



Shell imperforate, ovate-conic, solid, lightly striated. Whitish 

 under a buff epidermis, irregularly ornamented with wide chestnut 

 lightning-streaks. Spire conic, obtuse, suture a trifie marginated, 

 whorls 6, a little convex, the last as long as the spire, a little atten- 

 uated at base. Columella callous, twisted. Aperture slightly ob- 

 lique, obversely ear shaped, rose-whitish inside, glossy ; the peristome 

 reddish, thick, expanded and reflexed, the margins joined by a glossy 



