DRYM^US, SOUTH AMERICAN. 287 



forests along the Rio Grande between Santa Cruz de la Sierra and 

 Chiquitos ; other subvarieties occur to the east in the forests along 

 the Rio Tucabaca between San Juan and Santo Corazon de Chi- 

 quitos. 



The red-variegated (together with all of the others except " var. 

 major"'} occur abundantly in the province of Matto Grosso, Brazil, 

 around Corumba (pi. 49, figs. 49-52). I do not doubt that Bonnet's 

 B. pictus came from this locality, although he gives " Peru " as the 

 habitat. 



Special localities on record are : Brazil, Corumba, prov. Matto 

 Grosso, abundant in dry woods on trees, especially palms (Herbert H. 

 Smith) ; Bolivia, Mission of San Francisco, on the upper Pilcomayo ; 

 (Borelli) ; Argentina, Caiza, in the Chaco region ; Tala, prov. Salta ; 

 San Lorenzo, prov. Jujuy ; San Pedro, Santa Rosa, Rio Apa (Bor- 

 elli) ; Sierra de Catamarca (Brackebusch & Hieronymus). 



Ancey separates as var. icterica specimens with rather solid, 

 oblong-attenuated shell, dull yellow with the suture of the last whorl 

 and the umbilical area lilac. Alt. 29, diam. 13, length of aperture 

 14 mill. The variety was based upon two individuals. It is repres- 

 ented in the series before me, but so far as I see can hardly be 

 accorded varietal rank without similarly recognizing a good many 

 of the other variations also. 



As to the specific identity of B. pictus Pfr. with pwcilus I am not 

 certain. If the locality " Peru " be correct, it is doubtful ; but on 

 the other hand, Pfeiffer himself identifies his pictus with Bonnet's 

 species of the same name, which is unquestionably pcKcilus. The 

 same doubt attaches to Prince Lubomirski's doubtful determination 

 of numerous specimens collected at Chota, Peru, by Stolzmann, ex- 

 hibiting great variation in color. Compare mexicanus var. prim- 

 nlaris. 



D. INTERPUNCTUS (Martens). Vol. XII, pi. 5, figs. 4, 5. 



Shell perforate, conic-oblong, thin, very delicately spirally stri- 

 ated ; pale yellow, with widely separated vertical series of brown 

 spots, and on the base two bands, the suture narrowly white, apex 

 pale brownish. Whorls 7, nearly flat, the last rounded at base. 

 Aperture rather broadly ovate, columella arcuate, white, columellar 

 margin narrowly reflexed ; outer lip thin, only a trifle expanded. 

 Alt. 24, diam. 11 ; aperture 11 mill, long, 8 wide. (Martens). 



Piracicaba (Nehring), In nape and Piquette (von Ihering), prov. 

 Sao Paulo, Brazil. 



