90 PLEKOCHEILUS-EURYTUS. 



This Bulimus, of a soiled grayish-white, spotted and dotted with 

 small brown spots, resembles B.piperatus Sow., but is larger, much 

 thicker, and the last whorl is proportionally more lengthened and 

 swollen. Moreover the structure is very different, for there are only 

 longitudinal stria?, not cut transversely by finer ones ; the granula- 

 tion is coarser. The columellar margin is noticeably reflexed, 

 applied to the whorl, and united to the right margin by a more or 

 less thick layer of white enamel. The interior is bluish nacreous. 

 (./I/one.). 



P. TAYLORIANUS Reeve. PI. 36, figs. 78, 79. 



Shell imperforate, ovate-conic, rather thin, irregularly striated and 

 minutely granulated throughout; luster J ess ; chestnut-brown, with 

 scattered dots of darker, and on the spire some zig-zag blackish lines. 

 Spire slender, conic, apex rather acute ; whorls 4 j-5, those of spire 

 nearly flat ; suture impressed, becoming deep and slightly crenulated 

 around last whorl, which is wrinkled below it. Last whorl large, 

 swollen, very abruptly and deeply descending in front. 



Aperture ovate, fleshy-brown and glossy within ; peristome simple, 

 obtuse, flesh-colored ; columella very narrow, gently arcuate, flesh- 

 colored, slightly dilated and appressed above ; parietal callus thin, 

 fleshy, not projecting or spreading outward beyond the level of the 

 lip.' 



Alt. 53. diam. 30; aperture, alt. 32 mill, (specimen). 



Alt. 66, diam. 30; aperture, alt. 39 mill. (Pfr.). 



Around Quito, Ecuador ; Chimborazo (Bourcier) ; Los Puentes, 

 prov. Pinchincha (Cousin). 



B. taylorianus RVE., Conch. Icon., pi. 81, f. 602. PFR., Monogr., 

 iii, p. 381 ; Conchyl. Cab., p. 95, pi. 32, f. 1, 2. Eurytus taylorioides 

 MILLER, Malak. Bl. xxv, p. 180; and (u. F.) i, pi. 7, f. 1, (var. 

 minor). 



The sparsely scattered dark markings are not conspicuous on 

 account of the darkness of the ground-color ; and there is sometimes, 

 perhaps always, a peppering of minute golden points on the body- 

 whorl. The spire is quite slender for so inflated a body-whorl, and 

 the abrupt descent of the last whorl in front is very characteristic. 



I can see no reason for the existence of Miller's taylorioides, 

 founded on Pfeiffer's figures. 



