130 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



9868. Cardium (Protocardia) filosum Conrad. Holotype. 



Washita (Lower Cret.). Leon Springs, Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. 2, 1857, 

 p. 150, pi. 6, figs. 7a, 7b. 



135241. Cardium (Fragum) gatunense Dall. Cotypes. 



Eocene. Gatun, Isthmus of Darien. 



Dall, Trans. Wagner Free Inst. Sci. Phila. , III, Pt.V, 1900, p. nop. 



7905. Cardium ? kansasense Meek. Holotype and paratypes. 



Mentor (Cret. ) . Twelve miles southwest of Salina, Kansas. 



Meek, Fourth Ann. Rept. U. S. Geol. Surv. Terr., 1S71, p. 307; 

 Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 170, pi. 2, figs. 

 I4a-d. 



145861. Cardium (Cerastoderma) leptopleura (Conrad) var? 

 145933. Plesiotypes. 



Miocene. Plum Point, Maryland. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. V, 1900, p. 1095. 



1834. Cardium linteum Conrad. Holotype. 



Eocene. Canada de las Uvas, California. 



Conrad, Rept. Expl. and Surv. R. R. Miss. Riv. to Pacific Ocean, 

 V, 1856, p. 320, pi. 2. fig. 1. 



= Cardium. (Lsevicardium) linteum. 



135881. Cardium (Trachycardium ) malacum Dall. Holotype. 



Oligocene. Oak Grove, Santa Rosa County, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. V, 1900, 

 p. 1087, pi. 48, fig. 4. 



1 15665. Cardium ( Trigoniocardia ) maturense Dall. Holotype. 



Pliocene. Matura, Trinidad, West Indies. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. V, 1900, 

 p. 1 105, pi. 48, fig. 7. 



9860. Cardium mediale Conrad. Holotype. 



Lower Cretaceous. Texas. 



Conrad, Rept. U. S. Mexican Bound. Surv., Emory, I, pt. 2, 1857. 

 p. 149, pi. 4, figs. 4a, 4b. 



1864. Cardium modestum Conrad. Holotype. 



Miocene. San Diego, California. 



Conrad, Rept. Expl. and Surv. R. R. Miss. Riv. to Pacific Ocean, 

 V, 1856, p. 322, pi. 3, fig. 15. (See Dall, Trans. Wagner Free 

 Inst. Sci. Phila., Ill, Pt. V, 1900, p. 1092.) 



509. Cardium multiradiatum Gabb. Holotype. 



Ripley (Cret.). Eufaula, Alabama. 



Gabb, Journ. Acad. Nat. Sci. Phila., IV, 2d ser., i860, p. 395, 

 pi. 6S, fig. 29. 



[Not Cardium multiradiatum Sowerby. T. W. Stanton.] 

 = Cardium alabamense. 



