46 
9. Arte in on tumulus Pilsbry. 
Testa subgloboso-depressa, profunde et cylindrice nmbilicata, nmbilico '/, diametri adaeqnante, solid», 
nitida, alba Tel lnteseens, snperne costellata, costellis regnlaribus snbarcnatia laevibus, qaam interstitia lati- 
oribns, circiter 2 Vj in mm, ad peripheriam evanescentibus. Spira depresse convexa, snmmo snbconieo. An- 
fractns 7 lentissime accrescentes, nltimns quam pennltimua vii latior, rotnndatns, basi laevis, plerumqae vari- 
eibns 2 insignis. Apertara obliqoa lnnato-rotnndata, param latior qnamalta; peristoma primnm rectnm, basin 
Tersns expansiusculum; margo eolnmellaris expansns, reflexus, dilatatns, nmbilici parvam partem obtegens. 
Diam. maj. 25, min. 23, alt. 18, lat. apert. 12, alt. 11,7 mm. 
Streptaxis tumulus Pilsbry, in: Pr. Acad. Philadelphia 1897 p. 478. 
Brasilien. 
10. Artemon capillosus Pilsbry. 
Testa eae St. spixiani affinis, aperte nmbilicata, umbilico diametri aequante, solidula, griseo-alba 
vel lutescens, nitidula, subtilissime et confertim costellato-striata, costellis circiter 5 in spatio millimetri, in- 
ferne minoribus sed distinctis. Anfractus 6— 6'/ 3 convexi, primum lente dein rapidins accrescentes, Ultimos 
major, rotundatus, circa umbilicum obsolete angulatus. Apertura lnnato-rotnndata, obliqua; margo superior 
et externus expansiusculi, basalis medio breviter productus, eolnmellaris supra dilatatus. 
Diam. maj. 21, min. 18,3, alt. 13,5, lat. apert. 11, alt. 9,5 mm. 
Streptaxis capillosu’s Pilsbry, in: Pr. Acad. Philadelphia, 1897 p. 478. 
Provinz Bahia, Brasilien. 
11. Artemon helios Pilsbry. 
Testa depressa, late et snbinfnndibnliformi nmbilicata, umbilico s /s diametri adaeqnante, tenuinseula, 
fuscescens („buff“), polita, nitidissima, ad suturam tantum costellis brevissimis tuberculiformibns sculpta; 
spira depresse conica apice minuto, laevi. Anfractus 4 1 /, modice convexi, primum leniter, dein rapidius accres- 
centes, nltimns latior, rotnndatns, infra convexus, circa umbilicnm obtuse snbangulatus. Apertura obliqua, 
lnnato-rotnndata, latitudine altitndinem vix snperante; peristoma tenne, rectum, infra tantum subexpansum, 
margine columellari expanso, reflexiuscnlo, umbilicum vix obtegente. 
Diam. maj. 24, min. 21,7, alt 15, diam. apert. 11 mm. 
Streptaxis helios Pilsbry, in: Pr. Acad. Philadelphia, 1897 p. 477. 
Brasilien. 
