124 BUI,I,BTIN 31 124 



that year he denominates his species G. /iratum. This as Dall 

 points out was practicall}^ 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 figured. — 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. 



Gafrarium distans Con., Amer. Jr. Conch., vol. i, 1S65, p. 8. 

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



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

 striae, and elevated concentric undulations on the i:mbo, 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 (itndata) 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 ^indata on p. 41 where they were 

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



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



Horizo7i. — Claiborne Eocene. 



Specimeyis figured. — Paleont. Mus. Cornell Univ. from 

 Claiborne. 



Locality. — Claiborne, Ala. 



Sphaerella anteproducaa Harris, Pi. 40. Figs. 6-8. 



SphcErelta ? anteproducta Har. , Proc. Phila. Acad. Nat. Sci., 1895, 



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

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



p. 1x81. 



