106 TOMIGERUS. 



a. 1 Spire elevated, conic ; nearly smooth ; diam. about 20 

 mill. gibberulus. 



2. Shell brown or corneous, not banded ; spire elevated, conic. 



a. Umbilical suture straight in the middle ; whorls 5 ; diam. 



about 12 mill. turbinatus. 



a. 1 Umbilical suture short, arcuate ; whorls 4-4^ ; diam. 5 j- 



1\ mill. cumingi. 



T. CLAUSUS Spix. PL 7, figs. 67, 68, 69, 70. 



Shell compressed-ovate, distorted as though by pressure on the 

 aperturul side, imperforate, with a long, straightened umbilical 

 suture; white with numerous chestnut bands, the widest one on the 

 base, median bands more or less interrupted, and all disappearing on 

 the front of the shell ; the suture and umbilical rimation bordered 

 with brown. Surface sculptured with faint growth-striae except on 

 the last half whorl, which is strongly corrugated, the riblets irregular, 

 often anastomosing. Spire low conic ; whorls 4^, the last distorted, 

 excavated behind the columellar lip, and having an oblique 

 groove behind the outer lip. Aperture vertical, somewhat tri- 

 angular, with three lamellae on the parietal, three on the sloping 

 baso-columellar margin, and a large, obliquely entering plate-like 

 fold within the outer lip, its upper end bifid. Peristome broadly 

 expanded, white. Alt. 9, greater diam. 13, lesser 8 mill. 



Brazil : Province of Bahia, at Almada in the Ilheos district, in 

 primeval forest (Spix), and in the wood of Caxoeira (Blanchet). 



Tomigerus clausus SPIX, Testae. Bras., pi. 15, f. 4, 5 (1827) 

 PFR., Monogr. i, p. 2; iii, 285; iv, 327; v, 438; Conchyl. Cab., 

 Helix, pt. 2, p. 8, pi. 101, f. 19-21 DESHAYES, Traite Elementaire, 

 pi. 83, f. 3, 4. H. & A. ADAMS, Genera Rec. Moll, ii, p. 153, pi. 

 75, f. 4. Tomogeres clausus PFR., Symbolae iii, p. 52. PHILIPPI, 

 Abbild. u. Beschreib. ii, p. 131, Helix pi. 8, f. 14. Helix clausa 

 WAGNER in Spix, Testae. Bras., p. 21 (1827) Helix tomigera 

 MORICAND, Memoire sur les Coquilles Terrestres et Fluviatiles 

 envoyees de Bahia par M. J. Blanchet, in Memoires de la Societe de 

 Physique et d'Histoire Naturelle de Geneve, vii, p. 439 (see under 

 T. turbinatus}', xi, Troisieme supplement au Mem. Coq. Terr, etc., 

 p. 152, pi. 5, f. 13-16 (1845) Bulimus clausus DESK, in Lam., 



An. s. Vert., viii, p. 255 (1838) Scarabus clausus REEVE, Ann. 



and Mag. Nat. Hist, ix, p. 219, pi. 4, f. 1 (1842) Anostoma spixii 

 BECK, Index Moll., p. 34 (1837). 



