TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 181 



13860. Cryptonella pinonensis Walcott. Holotype. 



Upper Devonian. The Gate, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 163, pi. 4, figs. 4-40. 



25548. Cryptorhynchus annosus Seudder. Plesiotype. 



Older Tertiary. Roan Mountains, Western Colorado, and 

 White River, Eastern Utah. 

 Seudder, Mon. XXI, U. S. Geol. Surv., 1893, p. 128, pi. 11, fig. 10. 



25547. Cryptorhynchus durus Seudder. Holotype. 



Older Tertiary. Roan Mountains, Western Colorado. 



Seudder, Mon. XXI, U. S. Geol. Surv., 1893, p. 126, pi. 11, fig. 8. 



38865. Cryptozoe problematicus Packard. Holotype. 



Coal Measures. Mazon Creek, Illinois. 



Packard, Proc. Amer. Philos. Soc, XXIII, 1886, p. 381, plate 

 figs. 1, 2. 



33799. Cryptozoon ? occidentale Dawson. Cotypes. 



Chuar (Algonkian). Grand Canyon, Arizona. 



Walcott, Bull. Geol. Soc. Amer., X, 1899, p. 233, pi. 23, figs. 1-4. 



41489. Ctenobolbina alata Ulrich. Cotypes. 



Utica (Ord.). Cincinnati, Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII, 1890, p. no, 

 pi. 7, figs. 4a-c. 



41319. Ctenobolbina ( ? Bollia) antespinosa Ulrich. Holotype. 



Onondaga (Dev.). Falls of the Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII, 1890, p. 187, 

 pi. 15, figs. 9a-c. 



41494. Ctenobolbina armata Ulrich. Holotype. 



Onondaga (Dev.). Falls of the Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIX, 1900, p. 1S1, 

 pi. 8, fig. 6. 



41490. Ctenobolbina bispinosa Ulrich. Holotype. 



Utica (Ord.). Cincinnati, Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII 1890, p. no, 

 pi. 7, fig. 6. 



41495. Ctenobolbina cavimarginata Ulrich. Cotypes. 



Onondaga (Dev. ). Falls of the Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIX, 1900, p. 182, pi. 

 8, figs. 7-9. 



41492. Ctenobolbina ciliata (Emmons). Plesiotypes. 



Utica (Ord.). Cincinnati, Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII, 1890, p. 108, pi. 7, 

 figs, ia, ib. 



