TYVK .>^I'ECIMKNS OF IXVKKTKBRATK FOSSILS. 208 



13.S72. Cyrtina davidsoni Walcott. Cotypes. 



Upper Devonian. White Pine District, Nevada. 



Walcott, Mon. VIII, U. vS. (ieol. Surv., 1S.S4, j). 146, p\. 3, fig.s. 2-2e. 



24426. Cyrtina hamiltonensis (Hall ). Plesiotypes. 



24427. Base of Upper Devonian. Porcupine River and the Ram- 



parts, Mackenzie River, Canatla. 



Meek, 'rraiis, Chicu'^o Acad. Sci., I. 186S, ]). 99, pi. 14, fig.s. ^a, sl>, 

 I. .a, loll. 



See Cyrtina ]xinda. 



24428. Cyrtina panda Meek. Holotype. 



Base of U})per Devonian. Onion River, Mackenzie River 

 Basin, Canada. 



INIeek, Trans. Chicago Acad. Sci., I, 1S6S, p. mo, pi. 14, figs. Sa-d. 



= Cyrtina haniiltonen.sis. 



28 1 98. Cyrtoceras baffinensis vSchuchert. Holotype. 



Trenton (Ord. ). Head of PVobisher P>ay, Baffin Land. 



Schuchert, Proc. IT. S. Nal. Mas.. XXII, 1900, ]>. 171, ])1. 14, 

 figs. 11-13. 



14178. Cyrtoceras cessator Hall and Whitfield. Holotype. 



Lower Carboniferous. Near Ivberhardt Mills, White Pine 

 District, Nevada. 



Hall and Whitfield, Rcpt. U. S. (k-ol. Iv^pl. 4uth Par., I\'. I'l. II, 

 1S77, p. 278, pi. 6, fig. 15. 



2S121. Cyrtoceras cornulum vSchuchert. Cotypes. 



Trenton (Ord.). Head of P'robisher Bay, Baffin Land. 



Schuchert, Proc. U. vS. Nat. Mus., XXII, 1900, p. iji>, pi. 14, 

 figs. 8-10. 



46525. Cyrtoceras minneapolis Clarke. Cotyjie. 



Stones Ri\er (Ord. ). Minneapolis, Minnesota. 



Clarke, Geol. and Nat. Hist. Surv. Minn., I'inal Rcj)!., Ill, Pt. II, 

 1S97, p. SoS, ])1. 59, figs. 7, 8. 



13987. Cyrtoceras nevadense Walcott. Holotype. 



Middle Devonian. Combs Peak, PUireka District, Nevada. 



Walcott, Mon. VIII, T'. S. (reol. Surv., 1884, p. 203, pi. 17, figs. 

 7, 7a. 



46526. Cyrtocerina? schoolcrafti Clarke. Holotype. 



Black River (Ord.). Near Cannon F'alls, Minnesota. 



Clarke, Geol. and Nat. Hi.st. Surv. Minn., I-inal Rept., Ill, Pt. II, 

 1897. P- 774. pl- 47. figs- 12-14. 



46171. Cyrtodonta affinis ITlrich. Holotype. 



Black River (Ord.). Six miles south of Cannon Falls, 

 Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. JNIinn., I'inal Rc])t., Ill, Pt. II, 

 1894, p. 540, pi. 39, figs. 20-22. 



