4 STREPTAXIS §. 1. 2. 



1. St. subregularis Vfr./£^jM.HX3. 



'■' 3?^.^/. X.i 

 T. anguste umbilicata , turbinato-semiglobosa, superne con- 

 fertim et oblique costata, lineis transversis obsolete decussata, 

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

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

 liqua, lunaris, edentula; perist. album, undique breviter refle- 

 xum, margine columellari dilatato, — Diam. maj. 21, min. 19, 

 alt. 16 mill. (Mus. Guming. ) 



Streptaxis subregularis P/r.inPhil.Icon.II. I 3.p. I 27.Helixt. 8.f. 1 2. 



— — Chemn. ed. II. Ilelix t. 1 01 . f. 36 — 39. 



Habitat . . . ? 



Obs. Species H. Spixianae affinis, tamen ob strucluram subirregulaiem 

 et analogiam cum Str. contusa aliisque huic generi adnumeranda. 



2. St. alveus Dunker. /^/a ^<!r^. i^/ ./i.;^ 



T. perforata, turbinata, regulariter oblique costulata, 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- 

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

 vix expanso, basali breviter reflexo. — Diam. maj. 10, min. SVa, 

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



Streptaxis alveus Dimker in Phil. Icon. II. 9. p. 6. Hehx t. 6. f 14. 



— — Chcmn. od. II. Hehx t. 101. f. 33 — 3.=i. 



Habitat in Brasilia. 



§• 2. 



/}.,'-) ;■?.''■ t.?. - '/' f^v 



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

 laris, conica, obtusiuscula; anfr. ey^ convexi, costulato-striati, 

 ultimus antrorsum deviatus , basi inflata sublaevigatus; apertura 

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

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



Streptaxis nobilis Gray in Loud. mag. new ser. 1. p. 48 4. 



— — Wiegmamis Archiv 18 38. II. p. 274. 



— — Phil. Icon. I. 3. p. 48. 



Habitat in Sierra Leone. 

 "■'^" 4.^ St. Blandingianar (HeUx) Lea.^^ /! .- 



T. subglobosa, cornea, longitudinaliter striata, imperforata, 

 oblique depressa; anfr. 6; apertura obiique rotundata; labrum 



