4 STREPTAXIS §. I. 2. 



§. 1. 

 J. St. subrcgularis Pfr. 



T, anguste imihilicata, tarbinato-semiglobosa, superne con- 

 fertim et oblique costata, lineis transversis obsolete (lecussala, 

 hyalino-albida; spira turbinata, acutiuscula; anfr. 7 convexi, 

 ultimus varicosus, vix devians, basi laevigatus; apertura ob- 

 li'|ua, lunaris, edentula; perist. album, undique breviter refle- 

 xum, margine columellari dilatato. — Diam. maj. 21, min. 10, 

 alt. 16 mill. (Mus. Cuming.) 



Streptaxis sitbregularis Pfr.inVWil.lcou.ll. 1 .3.p. 1 27.Helixt. 8.f. 1 :2 



— — Chemn. ed. II. Ilelix t. I 1 . f. 36 — .39. 



Habitat . . . ? 



Obs. Species H. Spixianae affinis, tamen ob struoturam siibirregiilarem 

 et analogiam eiim Slr. contusa aliisque huic generi admuneranda. 



2. St. alveus Dunker. 



T. perforata, turbinala , regulariter oblique coslulata, te- 

 nuis, diaphana, corneo-albida; spira conica, acutiuscula; anfr. 

 10 vix convexiusculi, 2 ultimi vix deviantes, ultimus suban- 

 gulatus, basi planulatus; apertura obliqua, edentula, lunato- 

 ovalis; perist. simplex, margine supero perobliquo, dilatato, 

 vix expanso, basali breviter reflexo. — Diani. maj. 10, min. SVs, 

 alt. 10 mill. (CoII. Nr. 1.) 



Streptaxis alceus Dunker in Phil. Icon. II. 9. p. 6. Helix t. 6. f. 1 4. 



— — Chemn. ed. II. Helix t. 101. f. 33 — ^.'i. 



Habitat in Brasilia. 



§• 2. • 

 3. St. nobilis Gray. 



T. rimata, ovata, tenuis, nitidula, albida; spira subregu- 

 laris, conica, obtusiuscula; anfr. 6/2 convexi, costulato-slriati, 

 ultimus antrorsum deviatus, basi inflata sublaevigatus; apertura 

 subverticalis, semiovalis; perist. expansum, late reflexum. — 

 Diam. maj. 25, min. 20, alt. 25 mill. (Spec. coll. Gray.) 



Streptaxis nobilis Gray in Loud. mag. new ser. l. p. 484. 



— — UYe5r;nc?m's Archiv 18 38. II. p. 274. 



— — Phil. Icon. I. 3. p. 4 8. 



Habitat in Sierra Leone. 



1. St. Blandingiana (Hellx) Lea. >f- 



T. subglobosa, cornea, longiludinaliler striala, imperforata, 

 oblique depressa; anfr. 6; aperfura oblique rotundata; labrum 



