ANCTUS. 37 



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

 5 mill. 



Length 20J, diam. 10^, length of aperture incl. perist. 13J, width 

 5J mill. 



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

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



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

 POTIEZ & MICHAUD, GaleHe, 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 DESH., Histoire, p. 75, pi. 145, f. 3, 4 PER., Monogr. ii, 

 p. 97 ; iii, 375 ; iv, 445 ; vi, 80. Bulimus (Gonyostomus) angio- 

 stomus ALBERS, Die He!., p. 150 Anctus angiostoma FORD, 

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

 135, f. 2 Bulimulus (Anctus} anchistomus Wagn., MARTENS in 

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

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

 viii, p. 239. Bulimulus capueira BECK, Index Moll. p. 64. Buli- 

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

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

 Bulimus 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. LAMINIFERUS (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 flange 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 7J 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. 



