ART. 2 NEW MOLLUSKS FROM SOUTH AMERICA MARSHALL 7 



Santander del Norte, Republic of Colombia and was collected and 

 presented by Dr. R. H. Palmer. A paratype (Cat. No. 380702, 

 U.S.N.M.) is a younger specimen not quite so elongate. 



Like Anodontites irisans Marshall, this species has a general re- 

 semblance in external characters to the well-known EUiftio coni- 

 planatus ( Solan der) Dillwyn, of the eastern United States. The 

 shell is related to Anodontites irisans in form, size and color, but 

 bears across its surface radiating scalariform sculpture which is 

 lacking in irisans. This sculpture relates it to Anodontites tortilis 

 Lea, and Anodontites fittieri Marshall and it may for the present be 

 classed in that group. The unfigured Anodontites caHnata Phi- 

 lippi ^ probably is related to Anodontites palmeri, but its form, oval, 

 nearly elliptic, serves to differentiate it. 



EXPLANATION OF PLATES 

 Plate 1 



Figure 1. Planorbis paysanduensis, new species, X 2 diam. 



2. Odontostomus (Spixia) chuquisacana, new species, X 2 dia. 



3. Odontostomus (Plagiodontes) teisseirei, new species, nat. size. 



4. Planorbis paysanduensis, new species, top view, X 2 diam. 



5. Ampullaria palineri, new species, sculpture, X 15 diam. 



6. Planorbis paysanduensis, new species, X 2 diam. 



7. Drymaeus hairingtom, new species, nat. size. 



8. Ampullaria palmeri, new species, nat. size. 



9. BitUmulus felipponei, new species, X 2 diam. 



Plate 2 



All figures reduced 1/7 



Figure 1. Anodontites palmeri, new species. 

 2, 3. Diplodon yaguaronis, new species. 



4. Anodontites palmeri, new species. 

 5, 6. Diplodon yaguaronis, new species. 



7. Anodontites palmeri, new species. 



8 Mai. Blatt., 1858, p. 225. 



U S GOVERNMENT PRINTING OFFICE; 1930 



