180 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Cameroceras brainerdi (Whitfield). 



Orthoceras brainerdi Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 319, pi. 



27, figs. 14-16. Seely, Rep. State Geol. Vermont, 7, 1910, pi. 56, fig. 5. 

 Orthoceras explorator Whitfield (not Billings), Bull. Amer. Mus. Nat. Hist., 3, 



1890, p. 33, pi. 2, fig. 3. 

 Cameroceras (Proterocameroceras) brainerdi Ruedemann, Bull. New York State 



Mus., 80, 1905, pp. 296-339, figs. 5-18, pis. 6-9; Bull. 90, 1906, p. 405, pi. 1, 



figs. 5, 6; pi. 2, fig. 1. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 



39, fig. 1234. 

 Canadian (Beekmantown): Fort Cassin, Vermont; Valcour, New York. 



Cameroceras curvatum Ruedemann. 



Cameroceras curvatum Ruedemann, Bull. New York State Mus., 90, 1906, p. 411, 



fig. 2, pi. 2, figs. 6, 7. 

 Chazyan (Valcour): Isle La Motte, Vermont; Valcour and Chazy, New York. 



Cameroceras duplicatum (Hall). 



Endoceras duplicatum Hall, Pal. New York, 1, 1847, p. 219, pi. 55, fig. 1. 

 Cameroceras duplicatum Clarke and Ruedemann, Bull. New York State Mus., 65, 



1903, p. 580. 

 Trenton: Middleville, New York. 



Cameroceras hennepini Clarke. 



Cameroceras hennepini Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 779, pi. 52, figs. 



1-3; pi. 53, figs. 1-3. 



Endoceras hennepini Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.). 

 Trenton (Prosser) : Two miles northeast of Spring Valley, Minnesota. 



Cameroceras inaequabile (Miller). 



Endoceras insequabile Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 86, pi. 4, 



figs. 3, 3a. 

 Suecoceras insequabile Foerste, Bull. Sci. Lab. Deniso'n Univ., 16, 1910, p. 73, 



pi. 1, figs. 1, 2. 

 Richmond: Bristol, Illinois; Clarksville, Ohio; and Madison, Indiana (Waynes- 



ville). 



Cameroceras lativentrum (Hall). 



Endoceras lativentrum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 



1850, p. 181, pi. 5, fig. la, b (doc. ed., p. 173). 

 Cameroceras lativentrum Clarke and Ruedemann, Bull. New York State Mus., 65, 



1903, p. 580 (gen. ref.). 

 Trenton: Near Lowville, New York. 



Cameroceras marcoui (Barrande). 



Endoceras marcoui Barrande, Syst. Sil. Centre Boheme, 2, 1874, p. 748, pi. 431 



figs. 11-13. 

 Suecoceras marcoui Holm, Geol. Foren. Stockholm Forh., 18, 1896, pp. 403, 414. 



Ruedemann, Bull. New York State Mus., 90, 1906, p. 425, figs. 9-11. 

 Canadian (Beekmantown): Phillipsburg, Quebec. 



CAMEROCERAS PROTEIPORME Clarke. See Endoceras proteiforme. 



CAMEROCERAS PROTEIFORME var. ELONGATUM Clarke and Reudemann. See Endoceras 

 proteiforme elongatum. 



Cameroceras tenulseptum (Hall). 



Orthoceras tenuiseptum Hall, Pal. New York, 1, 1847, p. 35, pi. 7, fig. 6. Ray- 

 mond, Amer. Pal. Bull. 5, 1, No. 14, 1902, p. 19* 



