ANCTUS. 37 



Length 25^, diam. 11, length of aperture incl. perist. 14, width 

 5 mill. 



Length 2(H, diam. 10^, lengtli of aperture incl. perist. 13f, width 

 5 mill. 



Brazil : Wood of Capueira (Spix) ; Mountains of Jacob ina, in the 

 northern part of Bahia province (Moricand), living in pastures. 



Bnllmus angiostomus WAGNER, Testae. Bras., p. 14 (1827) 

 POTIEZ & MICHAUD, Galerie, i, p. 132, pi. 12, f. 5, 6 KUSTER, 

 Conchyl. Cab. p. 44, pi. 13, f. 12-14. REEVE, Conch. Icon. pi. 48, 



f. 312 DESK., Histoire, p. 75, pi. 145, f. 3, 4 PFR., Monogr. ii 



p. 97 ; iii, 375 ; iv, 445 ; vi, 80. Bulinms {Gonyostomus) angio- 

 stomus ALBERS, Die Hel., p. 150 Anctus angiostoma FORD, 

 Proe. Acad. Nat. Sci., Phila., 1891, p. 97, f. 2; Nautilus iv, p. 

 135, f. 2. Bith'mnhis (Anctns) anchistomus Wagn., MARTENS in 

 Alb., Die Hel., 1860, p. 214 Stenostoma capueira SPIX Test. 

 Bras., pi. 13, f. 4. Bulimus capueira DESK, in Lam., An. s. Vert, 

 viii, p. 239. BuKmulus capueira BECK, Index Moll. p. (>4. BuU- 

 mulus (Anctus) capueira FFR.-CLESS., Nomencl. Hel. Viv., p. 241 



(1878) Helix capueira MORIC., Mem. Geneve, vii, p. 435. 



Bulinms virgatus SPIX, t. c., pi. 6. f. 4. 



Varies somewhat in contour, and the outer lip may be either of 

 even width or slightly thicker in the middle. In about 20 specimens 

 I have seen, the apex is either pale or reddish ; but Wagner men- 

 tions that in the type it is black-brown. 



A. LAMIXIFERUS (Ancey). PI. 8, fig. 87. 



Similar to A. angiostomus but differing in the narrower aperture. 

 The columellar lip is more thickened in the middle, and the outer 

 lip bears a well-defined Mange projecting toward the columella, 

 situated at and below the middle; the lip being narrow for a third of 

 its length above the flange, and for a much shorter distance below it. 

 Whorls 7^ to 8, the first two black. 



Length 23, diam. 10; aperture incl. perist. 12^ x 4; inside 1 mill, 

 wide in the middle. 



Length 24.7, diam. 10; aperture incl. perist. 13x4.2; inside 1 mill, 

 wide in the middle. 



Length 22.7, diam. 11.7; aperture incl. perist. 13.3x4.5; inside 1.5 

 mill, wide in the middle. 



