130 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



986S. Cardium ( Protocardia ) filosum Conrad. Holotype. 



Washita (Ivower Cret.)- Leon Springs, Texas. 



Conrad, Rept. U. vS. Mexican Bound. Surv., Emory, I, Pt. 2, 1S57, 

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



135241. Cardium (Fragum) gatunense Dall. Cotypes. 



Eocene. Gatmi, Isthmus of Darien. 



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



7905. Cardium ? kansasense Meek. Holotype and paratypes. 



Mentor (Cret. ) . Twelve miles southwest of Salina, Kan.sas. 



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

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

 i4a-d. 



14586T. Cardium (Cerastoderma) leptopleura (Conrad") var? 

 145933. Ple.siotypes. 



Miocene. Plum Point, Maryland. 



Dall, Trans. Wagner Free In.st. 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. I. 



= Cardium. ( Laevicardium ) linteinn. 



1 3588 1. Cardium (Trachycardium) malacum Dall. Holotj-pe. 



Oligocene. Oak Grove, Santa Rosa County, Florida. 



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

 p. 10S7, pi. 48, fig. 4. 



1 15665. Cardium CTrigoniocardia ) 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. vS. Mexican Bound. vSurv., 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 vSurv. 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. ). luifaula, Alabama. 



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

 pi. 68, fig. 29. 



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

 = Cardium alal )amense. 



