586 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



135060. Scapharca (Bathyarca) spenceri Dall. Holotype. 



Pliocene. Tehuantepec, Panama. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 652, 

 pi. 32, figs. 16, 24. 



149025. Scapharca (Scapharca) staminata Dall. Holotype. 



Oligocene. Alum Bluff, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 641, 

 pi. 31, figs. 11, 13. 



113801. Scapharca (Argina) tolepia Dall. Holotype. 



Oligocene. Potrero, Rio Amino, Santo Domingo. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 649, 

 pi. 33, figs. 7, 8. 



107722. Scapharca (Scapharca) triphera Dall. Holotype. 



Pliocene. Caloosahatchie River, near Fort Thompson, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 648. 

 pi. 33, fig. 6. 



1 1 1804. Scaphella (Caricella) demissa (Conrad). Plesiotypes. 



Oligocene. Yicksburg, Mississippi. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 78, 

 Pi- 7, fig- 3- 



1 1 1830. Scaphella floridana (Heilprin). Plesiotypes. 



Pliocene. Caloosahatchie River, near Fort Thompson, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 89, 

 pi. 7, fig- 8. 



1 1 1802. Scaphella (Caricella) leana Dall. Holotype. 



Eocene. Prairie Creek, Wilcox County, Alabama. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 86, 

 pi. 6, fig. 9. 



6088. Scaphella (Aurinia) obtusa (Emmons). Plesiotypes. 



Miocene. Locality in North Carolina not known. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 80 

 pl- 7. fig- 7- 



Scaphella podagrina Dall. See Caricella podagrina. 



111S14. Scaphella (Caricella) subangulata (Conrad). Plesiotypes. 

 Upper Eocene. Garland Creek, Mississippi. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 87, 

 pl. 6, fig. 11. 



111832. Scaphella trenholmii ( Tuomey and Holmes). Plesiotype. 

 Oligocene. Alum Bluff, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 88, 

 pl. 6, fig. 10. 



