702 Hl'LLETIN oa, UNITED STATES NATIONAL MUSEUM. 



12340. Yoldia evansi (Meek and Haydeii). Plesiotype. 



Fort Pierre (Cret.). Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills" Dakota, 1S80, 

 p. 409, pi. II, fig. I. 



135821. Yoldia frater Dall. Holotjpe. 



Oligocene. Santa Rosa County, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Pliila., Ill, Pt. IV, 1898, 

 p. 596, pi. 32, fig. r. 



1 24 1 9. Yoldia microdonta Meek. Holotj'pe and paratypes. 



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

 Kansas. 



Meek, Fourth Ann. Rept. U. vS. Geol. Surv. Terr., 1871, p. 304; 

 Rept. U. vS. Geol. Surv. Terr., IX, 1876, p. 109, pi. 2, fig. 2. 



1 6488 1. Yoldia palachei Dall. Holotype. 



Eocene. Chichagof Cove, Alaska. 



Dall, Harrinian Alaska Exped., IV, 1904, p. 104, pi. 9, fig. 4. 



129799. Yoldia psammotaea Dall. Holotype. 



Claibornian (Eocene). Claiborne, Alabama. 



Dall, Trans. Wagner Free Inst. vSci. Phila., Ill, Pt. IV, 1S98, 

 p. 596, pi. 34, fig. 20 



302. Yoldia scitula ( Meek and Hayden). Holot^'pe and paratypes. 

 Fox Hills (Cret.). Moreau River, vSouth Dakota. 



Meek, Rept. U. S. (760!. Surv. Terr., IX, 1S76, p. no, pi. 28, fig. 9. 



See Nucula scitula. 



7591. Yoldia stevensoni Meek. Cotypes. 



Upper Carboniferous. Monongalia County, We.st ^"irginia. 



Meek, Third Rept. Regents West Virginia Univ., 1870-1S71, p. 72. 



22873. Yoldia subelliptica Stanton. Holotype. 



Colorado (Cret.). Poison Canyon, Huerfano Park, Colo- 

 rado. 



Stanton, Bull. No. 106, U. S. Geol. vSurv., 1893, p. 94, pi. 21, 

 figs. 6, 7. 



3957. Yoldia ? subscitula (Meek and Ha3'deu). Cotypes. 



Permian. Near mouth of Smoky Hill River, Kan.sas. 



Meek and Hayden, Pal. Upper Mo., vSmith.sonian Conlr. to Knowl., 

 No. 172, XIV, 1864, p. 60, pi. 2, figs. 4a, 4b. 



See Eeda subscitula. 



6494. Yoldia subscitula (Meek and Hayden)? Plesiotypes. 



Upper Carboniferous. Nebra.ska City, Nebraska. 



Meek, Final Rept. U. S. Geol. Surv. Nebra.ska (Hayden), 1872, 

 ]). 205, pi. 10, fig. 10. 



21699. Yoldia? subscitula (Meek and Hayden). Plesiot3'pe. 



Permian. Godwin Creek, Baylor County, Texas. 



White, Bull. No. 77, U. S. Geol. Surv., 1891, p. 27, pi. 4, fig. 4. 



