TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 47 



12254. Anisomyon borealis nVIorton ). Plesiotype. 



Fort Pierre ( Cret. ). Cheyenne River. Black Hills, vSouth 

 Dakota. 



Whitfield, Rept. Geol. aiul Resources Black HilLs, Dakota, iSSo, 

 p. 436, pi. 12, fiK- 23. 



8649. Anisomyon borealis (Morton;. PlesiotN-pes. 



Montana (Cret.). Oallinas Creek, New Mexico. 



While, Rept. U. vS. Geogr. vSurv. W. looth Merid., I\', Pt. I, 1876, 

 ]). 193, pi. iS, fijiii. 9a, 1). 



12430. Anisomyon centrale Meek. Cotype.s. 



Fox Hills (Cret.). Box Elder and Colorado City, Colo- 

 rado. 



Meek, Fourth Aim. Rt-pL. U.S. Geol. Surv. Terr., 1871, p. 312. — 

 White, Eleventh Ami. Rept. U. S. Geol. Surv. Terr., 1S79, 

 11. 303, pi. 9, figs. la-d 



8659. Anisomyon centrale Meek. Plesiotype. 



Montana (Cret.). Gallinas Creek, New Mexico. 



White, Rept. U. S. Geogr. Surv. W. HHjth Merid., IV, Pt. I, 1876. 

 ]). 194, pi. iS, fig.s. 8a, h. 



246. Anisomyon patelliformis Meek and Harden. Cotypes. 



Montana (Cret.). Yellowstone River, near Miles City, 

 Montana. 



Meek and Haj-deii, Am. Journ. Sci., (2), XXIX, i860, pp. 34, 35, 

 pi. I, figs. 1-3.— Meek, Rept. U. S. Geol. Surv. Terr., IX, 

 1876, p. 290, pi. 18, figs. 5a-c, 5e, 5f. 



See Helcion patelliformis and Acnicea ? })apillata. 



12268. Anisomyon patelliformis Meek and Hayden. Plesiotypes. 

 Fort Pierre ( Cret. ) . Old Woman Fork of Cheyenne River, 

 Wyoming. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 1880, 

 p. 435, ])1. 12. figs. 17, 18. 



249. Anisomyon sexsulcatus (Meek and Haj'den). Holotype. 

 Montana (Cret.). Yellowstone River, near Miles City, 

 Montana. 



Meek, Rept. IT. S. Geol. Sui^-. Terr., IX, 1S76, p. 29-,, pi. 18, figs. 

 8a, 8b / 1 v^ P - K 



See Helcion sexsiilcatns. 



245. Anisomyon shumardi Meek and Hayden. " Holotype. 



Fort Pierre (Cret. ). Great Bend of Missouri, below Fort 

 Pierre, South Dakota. 



Meek, Rept. U. S. Geol. Surv. Terr., IX, 1876, p. 289, pi. 18, 

 figs. 7a-c. 



