1278 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Trachomatichnus numerosus Miller. 



Trachomatichnus numerosus Miller, Jour. Cincinnati Soc. Nat. Hist., 1880, p. 



219, pi. 13, figs. 2-A. 

 Eden (Economy): Walker Mill Road, Cincinnati, Ohio. 



Trachomatichnus perinultus Miller. 



Trachomatichnus perinultus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, 



p. 220, pi. 13, fig. 5. 

 Eden (Economy): Walker Mill Road, Cincinnati, Ohio. 



TRACHTUM Billings. Genotype: T. cyathiforme Billings. 



Trachyum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 211.— Miller, N. A. 

 Geol. Pal., 1889, p. 166. 



Trachyum cyathiforme Billings. 



Trachyum cyathiforme Billings, Pal. Foss., 1, Geol. Suit. Canada, 1865, p. 211, 



fig. 196.— Miller, N. A. Geol. Pal., 1889, p. 166, fig. 127. 

 Canadian (Quebec— G): Cape Norman, Newfoundland. 



Trachyum rugosum Billings. 



Trachyum rugosum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 212. 

 Canadian (Quebec — G): Cape Norman, Newfoundland. 



Trachyum undosum James. Not recognized. 



Trachyum undosum James, Paleontologist, No. 2, 1878, p. 9. 

 Clinton: Clinton County, Ohio. 



Tramoria Reed. See Apatokephalus Brogger. 



TREMANOTUS Hall. Genotype: Bellerophon perforatus Winchell and Marcy. 



Tremanotus Hall, 20th Rep. New York State Cab. Hist., 1868, pp. 347, 388 (extras, 

 1865); rev. ed., 1870, p. 399.— Winchell and Marcy, Mem. Boston Soc. Nat. 

 Hist., 1, 1865, p. 109.— Meek, Proc. Chicago Acad. Sci., 1, 1866, p. 10.— Waagen, 

 Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, p. 131. — Lindstrom, 

 Kongl. Sven.Vet.-Akad. Handl., 19, No. 6, 1881, pp. 70, 85.— Zittel, Handb. 

 Pal., 2, 1882, p. 184.— Koken, Neues Jahrb. Min., Geol., Pal., 6, Beilage- 

 Band, 1889, pp. 381, 386.— Miller, N. A. Geol. Pal., 1889, p. 428.— Newton, 

 Geol. Mag., dec. 3, 9, 1892, p. 337.— Freeh, Zeits. d. d. geol. Gesell., 46, 

 1894, p. 461. — Koken, Die Leitfossilien, Leipzig, 1896, p. 99; Neues Jahrb. 

 Min., Geol., Pal., 1, 1898, p. 7. — Ulrich and Scofield, Geol. Minnesota, 3, pt. 

 2, 1897, p. 851.— Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 615. 



Trematonotus Pilsbry, Zittel-Eastman Textb. Pal., 1, 1900, p. 445.— Dall, ibid., 

 2d ed., 1913, p. 521. 



Tremanotus alpheus (Hall). 



Tremanotus alpheus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 347, 

 pi. 15 (6), figs. 23, 24; p. 389; rev. ed., 1870, p. 399, pi. 15, figs. 23, 24.— 

 McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 47, pi. 8, fig. 4— Hall and 

 Whitfield, Geol. Surv. Ohio Pal., 2, 1875, p. 145, pi. 8, fig. 1— Whiteaves, 

 Geol. Surv. Canada Pal. Foss., 3, pt. 1, 1884, p. 34.— Lesley, Geol. Surv 

 Pennsylvania, Rep. P 4, 1890, p. 1198, fig. 



Trematonotus alpheus Clarke and Ruedemann, Mem. New York State Mus., 5, 

 1903, p. 54, pi. 5, figs. 20-23; pi. 6, figs. 1-9.— Grabau and Shimer, N. A. Index 

 Fossils, 1, 1909, p. 615, figs. 824, 825. 



Bellerophon (Bucania) perforatus Winchell and Marcy, Mem. Boston Soc. Nat. 

 Hist,, 1, 1865, p. 100, pi. 8, fig. 7; p. 109. 



Niagaran: Chicago, Illinois, and Racine, Wisconsin (Racine); Shelby and Roch- 

 ester, New York; Ohio; Ontario (Guelph). 



