BUMMULUS. XXXI 



B. corumbaensis Pils., xi, 68. 13. fourrniersi Orb., xi, 71. 



amoenns Bonnet. B. simplex Hupe, xi, 72. 



B. vesicalis Pf'r., xi, G9. B. heloicus Orb., xi, 72. 



v. uruguayaniis Pils., xi, 69. B. nivalis Orb., xi, 72. 



B. rushii Pils., x, 70. B. plicatulus Pfr., xi, 72. 

 B. mendozanus Strob., xi, 71. pliculatus Pf'r.-Cless. 



v. bonaerensis Doer., xi, 319. B. castelnaui Pfr., xi, 73. 



v. azulensis Doer., xi, 319. B. luteolus Anc., xiv, 145. 



B. tortoranus Doer., x, 192. B. stilbe Pils., xiv, 145. 



B. cordillerae Strob., x, 191 B. dukinfieldi Melv.. xiv, 146. 



B. monticola Doer., x, 191.. B. marcidus Rve., xiv, 146. 

 B. aguirrei Doer., xi, 320. 



Habitat unknown. 



B. indistinctus Pfr., xiv, 144. B. inutilis Rve., xi, 73. 



monilifer Rve. B. haplochrous Pfr., xi, 74. 



B. transparens Rve., xi, 73. 



Section Dentaxis Pilsbry, 1902. 



Cylindric-tapering, the nepionic shell with slight waved wrinkles 

 and stronger spiral striae ; columella bearing a tooth-like fold ; outer 

 lip thin and unexpanded. 



B. dentaxis Pils., xiv, 143. Peru. 



Section Rhimts Albers, 1860. 



Nepionic whorls finely and densely zigzag striate or with inter- 

 rupted waved striae, the cuticle elsewhere hairy or bristly in spiral 

 lines. Type B. heterotrichus. 



The jaw of B. constrictus, examined by Schako, is composed of 11 

 wide plaits. The radula has 27, 1, 27 teeth, in rows straight in the 

 middle, a little arcuate at the ends ; centrals tricuspid, laterals bi- 

 cuspid ; both radula and jaw agreeing with those of Bulimuhis s. sir. 



All of the species are Brazilian except B. constrictus, from Vene- 

 zuela, and aryentinus, from Entre-rios. 



B. heterotrichus Moric., xi, 75. B. longiseta Moric., xi, 77. 



(?) Helix tumidn Gmel. B. scobinatus Wood, xi, 77; 



v. subtenuis Pils., xi, 76. xiv, 147. 



B. velutinohispidus Moric., xi, 76. B. ciliatus Gld., xi, 78. 



hirtus Beck. B. koseritzi Cless., xi, 79. 



