DRYM^US-ZAPLAGIUS. 191 



mill. The black tip of the apex is usual but by no means invari- 

 able. 



D. AURISMURIS (Moricand). PI. 28, figs. 5, 6, 7. 



Shell pyramidal with flat or concave base, rimate, moderately 

 solid ; white, rarely uniform, but usually with four or five spiral 

 bands of purple-brown, frequently connected by zigzag longitudinal 

 streaks, and occasionally interrupted, the base with one band or 

 none, spire white or banded. Surface smoothish, with some faint, 

 fine malleation and subobsolete spiral striation ; shining. Whorls 

 6|, the first white, with the usual sculpture, the rest nearly flat, last 

 whorl convex above, laterally compressed, cylindrical, with a strong, 

 obtuse angle around the flat or concave base, which generally shows 

 some spiral furrows. 



Aperture ear-shaped, squarish, the peristome white, broadly re- 

 flexed, generally angular at the outer lower part ; columellar lip 

 dilated. 



Alt. 31, diam. 17, alt. of aperture 17 mill. 



Alt. 27, diam. 16^, alt. of aperture 14 mill. 



Province of B'jihia, Brazil (Moricand). 



Helix auris muris MORICAND, Mem. Soc. Hist. Nat. Geneve, viii, 

 p. 140, pi. 3, f. 1-3 (1837). Bulimus auris muris PFR., Syrnb., i, p. 

 80; ii,p. Ill; Monogr., ii, p. 99 ; vi, p. 81. REEVE, Conch. Icon., 

 pi. 41, f. 261. DESK, in Fer., Histoire, p. 106, pi. 138, f. 7, 8. 

 HUPE in Castelnau's Exped., Moll., p. 57, pi. 9, f. 4. Otostomus 

 myotis BECK, Index Moll. ,1837, p. 55. Otodomus auris muris ADS., 

 Gen. Rec. Moll., ii, p. 149. Helix uniangulata FER., according to 

 Pfeiffer. Probably not Bidimus auris muris CUNNINGHAM, Trans. 

 Linn. Soc., xxvii, 1871, p. 483, and certainly not B. auris muris 

 Shuttl., Mittheil.Naturforsch. Ges.in Bern, 1852, p. 200. 



Much more abruptly and less obliquely cut off below than D. 

 aurisleporis, with short aperture, not produced downward. Cun- 

 ningham reports the species from the botanical garden, Rio Janeiro, 

 but what he found there was probably aurisleporis. 



Subgenus DRYMUEUS Albers. 



Drymceus ALB., Die Hel., 1850, p. 155, for B. xanthostoma and B. 

 hygrohylceus Orb. Hamadryas ALB., t. c., p. 155, for B. zoographi- 

 cus and B. linostoma Orb. Not Hamadryas Hiibner, 1806, Bois- 

 duval, 1832, or Gray, 1 840. Semiclausariq PFR., Malak. Bl., 1855, 



