1897.] NATURAL SCIENCES OF PHILADELPHIA. 19 



nepionic whorls shallowly, rather irregularly zig-zag wrinkled in the 

 young, this sculpture lost with age. Whorls 6£, convex, with well 

 impressed sutures. 



Aperture ovate, rather wide, brownish inside, varying from slightly 

 to decidedly under half the length of the shell ; outer lip regularly 

 arcuate, acute, unexpanded and fragile, columella slightly concave, 

 the columellar margin narrowly reflexed above. 



Alt. 20 diam. 10J mill. ; alt. of aperture 9 mill. 



Alt. 17? diam. 8 mill. ; alt. of aperture 7 mill. 



Alt. 17 diam. 8f mill ; alt. of aperture 8 mill. 



Gorriti Island, Maldonado Bay, Uruguay (Dr. Wm. H. Rush, 

 U. S. K). 



A smaller, thinner, more turreted shell than B. sporadicus or its 

 varieties, the whorls more convex, apex blunter, the first whorl be- 

 ing planorboid. The whorls are more convex and more wrinkled 

 than in B. tenuissimus. 



Bulimulus corumbaensis n. n. 



Bulimus amcenus Bonnet, Eev. et. Mag. de Zool., 1864, p. 70, pi. 6, f. 2. 

 Not Bulimus amcenus Pfr. 



The locality given by Bonnet for this species is incorrect. It oc- 

 curs at Corumba, province of Matto Grosso, Brazil, where Mr. 

 Herbert H. Smith found it common on walls, etc. B. corumbaensis 

 is closely allied to the typical form of B. sporadicus Orb., but it is a 

 less elongated shell, solid, with distinctly expanded peristome and 

 very widely dilated columellar lip, the umbilicus larger than in spor- 

 adicus. The striped color pattern is a conspicuous but variable 

 character. It belongs to the restricted subgenus Bulimulus (-\-Lep- 

 tomerus). 



It may be remarked here that but few of the localities given by 

 Bonnet, for species described in the paper mentioned above, are cor- 

 rect. His Helix vitrea is not South American. Bulimus pictus is 

 not Peruvian, being a form of Drymceus pozcilus Orb. of Bolivia 

 (Province Santa Cruz) and Matto Grosso. Pupavarius, said to be 

 Tasmanian, is a mottled race of Cerion glans, of New Providence, 

 Bahamas. 



Bulimulus angrandianus n. n. 



Bulimus radiatus Morelet, Series Conchyliologiques, III, p. 188, pi. 9, f. 2. 

 Not Bulimus radiatus Bruguiere. 



The name of this Peruvian species of the section Lissoaeme being 

 preoccupied, may be changed as above. 



