47 



12, Artemon decussatus Pilsbry. 



Testa depresse turbinata, anguste nmbilicata, umbilico profundo sabcylindrico, '/^ — '/]„ diametri ad- 

 aequante, solidnla, pallide latescens, vitracea, snpra confertim anbtiliterqae costellata, costellis ciroiter 3 in 

 Bpatio millimetri, lineis spiralibas inbtilissimis in interstitio inconspicuig decosiati; spira depresse coniea late- 

 ribos vix convexiasculis ; apex costnlatns. Anfractas 6^21 primi lente, seqaentes rapidias acereicentes, nltimns 

 obsolets angnlatus, infra canvexns, circa nmbilicnm angulatua. Apertnra rhomboidea, snbobliqna, ad angnlnm 

 peripliericnm nee non ad baain columellae aognlata; peristoma rectum, band expaosum, margine colnmellari 

 verticali, snpra dilatato, supra nmbilicnm reflexo. 



Diam, maj. 22, min. 20, alt. 16, lat. apert. 12, alt. 11 mm. 



Streptaxis decussatus Pilabry, in: Pr. Acad. Philadelphia, 1897 p. 479. 



Brasilien. 



