200 ORTHALICUS. 



interrupted. On the last whorl near the base, which is very dark, 

 is a faint, broad, lighter colored band. The columella is remarkable 

 for its obtuse white tooth, surrounded by the rich, dark coloring of 

 the aperture. The right lip is of huge thickness, and much reflected ; 

 above it is of a light chestnut color ; below of a rich brownish japan- 

 like black, which, particularly where it is shading off into the chest- 

 nut, gives, when the light is thrown full on it, the same kind of 

 iridescent appearance as is seen in the Lumachella, or fire-marble. 

 The lower edge of this rich lip is punctured pretty thickly with dots, 

 resembling those of Gyprcea testudinaria, which seem filled with a 

 whitish, opaque substance, and the formation of which has given an 

 irregular and almost fungus-like appearance to the reflected border 

 of the lip, on its upper side. The interior of the aperture is white. 

 Length 3 inches, breadth, measured across the body-whorl, and in- 

 cluding the lip, 1J inches." (Brod.) 



Toulea, about nine leagues east of Chachapoyas, Peru, about 8000 

 ft. elevation (Lieut. Maw, R. N.). 



Bulinus labeo BRODERIP, Zool. Journ, iv. p. 222, suppl. pi. 31 

 (\%2%}.Bulimus labeo REEVE, Conch. Icon. pi. 35, f. 207, copied 



from Broderin, (not pi. 71 and 72, f. 207 b, c NYST, Bull. Soc. 



Roy. Bruxellesxii, p. 149, pi. 1, f. 2a, 2b. PFR., Monogr. ii. p. 56. 

 Porphyrobaphe labeo SHUTTLEWORTH, Notitiae Malacologicaei, p. 

 71 (part), 89. Cf. FULTOX, Ann. Mag. N. H. (6), xviii, p. 104. 



The type specimen was deposited in the museum of the Zoological 

 Society of London, but disappeared shortly afterward, and has nol 

 been recovered. Other specimens have since been found. It is evi- 

 dently allied to 0. vicarius, but the remarkably broad and curiously 

 punctate peristome easily separates it from that and all other known 

 species. 



O. VICARIUS (Fulton). PI. 44, figs. 18, 19; pi. 48, fig. 12. 



Shell ovate-conic, thick and solid ; pale pinkish-gray under a thin 

 olive-yellow cuticle, mainly wanting on the spire, which is irregularly 

 streaked with purplish, the last whorl with some inconspicuous dusky 

 streaks, and a narrow dark band, more or less interrupted, at the 

 periphery, another continuous one on the base just behind the colu- 

 mellar lip. Surface somewhat shining, with faint, low growth- 

 wrinkles only. Whorls 7^8, the first one planorboid above, earliest 

 3J forming a closely pitted nepionic shell, the fourth whorl (at 



