124 BUI,I,STIN 31 124 



that year he denominates his species G. liratum. This as Dall 

 points out was practically preoccupied by d'Archiac's Lucina 

 {Corbis) lyrata, hence the name introduced by Dall. 



Type. — The single specimen in the Conradian Coll. Acad. 

 Nat. Sci. , Phila. , may be taken for the type. 



Horizon. — Claiborne Eocene. 



Specimen Jigured. — Paleont. Mus. Cornell Univ. 



Locality. — Claiborne, Ala. 



Corbis undata Conrad, PI. 40. Fig. 5. 



C. undata Con.,.Foss. Sh. Tert. Form., 1833, p. 41 ; pi. fig. 6, of Har- 

 ris' Reprint, 

 C. distans Con., Ibid., p. 41. 



Gafrarkmi distans Con., Amer. Jr. Conch., vol. i, 1865, p. 8. 

 Corbis undata Dall, Trans. Wag., Ill, 1903, p. 1392. 



Conrad^s original description. — Suboval, convex, with radiating 

 striae, and elevated concentric undulations on the umbo, and impressed 

 lines on the inferior portion of the valve, where the radiating lines are ob- 

 solete ; umbo rather ventricose ; beaks central, inner margin crenate. 



Dall remarks, op cit. : Conrad described the adult {undata) and 

 young [distans) shells as separate species in 1833 ; he united them under 

 the name undata in 1846 ; in 1865 having apparently forgotten his consoli- 

 dation, he united them a second time under distans. The first rectification 

 of course, must take precedence. 



Perhaps Conrad's second rectification was due to the fact 

 that the name distans preceded 7C7idata on p. 41 where they were 

 both used. De Gregorio adopts distans as the correct name. 



Types. — Specimens in the Conradian Coll., Phila. Acad. 



Horizon. — Claiborne Eocene. 



Specimens Jigured. — Paleont. Mus. Cornell Univ. from 

 Claiborne. 



Locality. — Claiborne, Ala. 



Sphserella anteproducta Harris, PI. 40. Figs. 6-8. 



Sph(zrella ? anteprodzicta Har., Proc. Phila. Acad. Nat. Sci., 1895, 



p. 50, pi. 2, Fig. 4. 

 Dipt, turgida Dall, partim, (not Conrad), Trans. Wag., Ill, 1900, 



p. 1181. 



