holmberg: bulimüli et odontostomi argentini. 149 



snperne satis obliqua, marginibus dextro recto columellarique 

 usqne ad basin curvatim reflexo, sgepius albido, umbilicnm ab 

 inferné non occultante, callo teniii postremó junctis. 



1. Long. 28 Va, lat. 9; apert. 11 mm. long-., H lat. — Anfr. 8 Va. 



2. » 26 V2, » 9; » 10 'a >- » (5 » — » 8. 



3. » 24 >/2, » 9; » 10 Vi » » 6 » — » 8. 



Ad marginem dextrnm fluminis Pilcomayo in cortice arboris 

 Algarrobo (Prosopis alba, Grisebach) specimina varia (V. 1908) 

 filius Eduardo Alejandro invenit.— (In Bolivia idéntico modo 

 quoque). 



Sg. Thaumastus, Albkus, ed. v. M. 



4. Buliinuliis Héctor, Holmberg. 



MoUusca Geophila Argentina nova,\n Ap. de Hist. Nat., x, p. 11, n" 6 (1909^. 



Cum B. Cora D'Orbigny affinitatis causa, ut monui, in hoc 

 subgenere locandns. 



o. Bulimtilus Jujiiyensis, Holmberg. 



MoUusca Geophila Argentina nova, in Ap. de Hist. Nat., i, p. 11, n° 5(1909). 



Qiiamquam ( ut sequens ) gracilior, si BiiUmulus sporadicus 

 D'Orbigny Thmtmashts est, bfec species quoque convenit. 



6. Biiliiiiiilus Flossdorfi, Holmberg. 



MoUusca. Geophila Argentina nova, in Apunt. de Hist. Nat., i. p. 11, n° 4 (1909). 



Ut supra. 



7. HiiliinuliLS Saltensis, Holmberg. 



MoUusca Argentina varia, in Apunt. de Hist. Nat., i, p. 91, n" 3 (1909). 



Jam cum priore (1. c.) affinitatem monui. 



Subg. Mormus, Albeus, ed. v. M. 



8. Buliinuliis Aguirrei, Dcering. 



DffiRiNG, Moluscos apnd E. L. H. Viajes al Tandil y á La Tinta, in Act. Acad. 

 Nac. Cieno. Córdoba, V, p. 112. 



Cl. Ppeipper (Nomenclátor y p. 2-17) Bulim. Mendozanus Strobel 

 á subgenere FAidiop)to retulit quod in liac specie testa haud imper- 

 forata est, et in JIormo locavit. Bidim. Aguirrei Dcering cum 



