46 



9. Arlemon tumulus Pilsbry. 



Testa BnbgloboBo-depreBga, profonde et cjlindrice umbilicata, ombilico '/, diametri adaeqnant«, solida, 

 nitida, alba Tel latesceDs, gnperne costellata, costellis regnlaribas snbarcnatii laeTibas, qnam interstitia lati- 

 oiibns, circiter 2Vi in mm, ad peripheiiam eTaneseentiboa. Spira depreaie convexa, sammo aabconieo. An- 

 fractos 7 lentisaime accrescenteg, nltimas qnam penaltimns vix latior, lotandatog, basi Uevis, pleramqae vaii- 

 eibas 2 insignis. Apertara obliqaa Innato-ratuDdata, parnm latior qaamalta; periBtoma primom rectam, basin 

 retBnB expaDsinBcnlam; margo columellariB expansoB, leflexna, dilatatas, nmbilici parvam partem obtegeni. 



Diam. maj. 25, min. 23, alt. 18, lat. apert. 12, alt. 11,7 mm. 



Streptaxis tnmnloB Pilsbry, in: Pr. Acad. Philadelphia 1897 p. 478. 



Brasilien. 



10. Artemon capillosus Pilsbry. 



Testa eae St. spixiani affinis, aperte umbilicata, nmbilico '/«"Vs diametri aeqnante, solidnla, griseo-alba 

 Tel Intescens, nitidnla, snbtilissime et confertim costelUto-Btriata, costellis circiter 5 in spatio millimetri, in- 

 ferne minoribns sed distinctis. Anfractns 6—6^/3 conrexi, primnm lente dein rapidins accrescentes, nltimus 

 major, rotnndatns, circa nmbilicnm obsolete angalatas. Apertnra Innato-rotnndata, obliqaa; margo inperior 

 et externns expansiascnli, basalis medio breviter prodactas, colnmellaris snpra dilatatas. 



Diam. maj. 21, min. 18,3, alt. 13,5, lat. apert. 11, alt. 9,5 mm. 



Streptaxis capillosus Pilsbry, in: Pr. Acad. Philadelphia, 1897 p. 478. 



Provinz Bahia, Brasilien. 



II. Artemon helios Pilsbry. 



Testa depressa, late et sabinfandibnliformi umbilicata, ambilico '/, diametri adaeqaante, tenoiascnla, 

 fascescens („boS"), polita, nitidissima, ad saturam tantam costellis breyissimis tubercaliformibns scolpta; 

 spira depresse conica apice minato, laeTi. Anfractns 4'/, modice conTexi, primnm leniter, dein rapidins accres- 

 centes, nltimns latior, rotnndatns, infra conTexus, circa nmbilicnm obtuae snbangnlatns. Apertara obliqna, 

 Innato-rotnndata, latitndine altitndinem vix snperante; peristoraa tenne, rectam, infra tantam subexpansnm, 

 margine colnmellari expanso, reflexinscnlo, nmbilicum rix obtegente. 



Diam. maj. 24, min. 21,7, alt. 15, diam. apert 11 mm. 



Streptaxis helios Pilsbry, in: Pr. Acad. Philadelphia, 1897 p. 477. 



Brasilien. 



