78 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



30198. Aucella aviculaeformis Hyatt. Cotypes. 



Jurassic. Near Reynolds Ferry, six miles from Copper- 

 opolis, California. 

 Hyatt, Bull. Geol. vSoc. Amer., V, 1894, p. 433. 



30199. Aucella aviculaeformis acuta Hyatt. Cotypes. 



Jurassic. Near Reynolds Ferry, six miles from Copper- 

 opolis, California. 

 H^'att, Bull. Geol. Soc. Amer., V, 1894, p. 433. 



21663. Aucella concentrica Keyserling. Plesiotypes. 



Knoxville (Lower Cret.). Near Knoxville, California. 



White, Mon. XIII, U. S. Geol. vSurv., 1889, p. 232, pi. 4, figs. 

 18, 19, 20. 



= Aucella piochii. 



21663. Aucella concentrica Key.serling. Plesiotypes. 



Knoxville (lyower Cret.). Near Knoxville, California. 



White, Mon. XIII, U. S. Geol. vSurv., 1889, p. 232, pi. 4, figs. 

 16, 17. 



= Aucella crassicollis. 



21660. Aucella concentrica Fischer. Plesiotypes. 



Knoxville (Lower Cret.). State of Washington. 



White, Mon. XIII, U. S. Geol. Surv., 1889, p. 232, pi. 4, fig. 21. 

 = Aucella crassicollis. 



12360. Aucella concentrica Fischer (variety). Plesiotj-pe. 



Lower Cretaceous? Fossil Point, Port Moller, Alaska. 



White, Bull. No. 4, U. vS. Geol. Surv., 1884, p. 13, pi. 6. figs. 2-12; 

 Mon. XIII, U. S. Geol. Surv., 1889, p. 232, pi. 4, figs. 11-15. 



= Aucella cra.ssicoUis. 



21663. Aucella crassicollis Keyserling. Plesiotypes. 



23034 Knoxville (Lower Cret.). Between Elder Creek and 



to Paskenta, and near Stephen.son, Tehama County, 

 23039. California. 



vStanton, Bull. No. 133, U. S. Geol. vSurv., 1895 (Feb., 1896), p. 

 45, pi. 5, figs. 1-13; pi. 6, figs. 2-5. 



See Aucella concentrica, 12360, 21660, 21663. 



30196. Aucella elongata Hyatt. Cotypes. 



30197. Jurassic. vStanislaus River, opposite Bostwick's bar, Cali- 



fornia. 

 Il3att, Bull. Geol. Soc. Amer., V, 1894, p. 431. 



30195. Aucella elongata orbicularis Hyatt. Holot3'pe. 



Jurassic. Bostwick's bar, Stanislaus River, California. 

 Hyatt, Bull. Geol. Soc. Amer., V, 1894, p. 432. 



