BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 661 



ILLjENUS Continued. 



burg, 7th eer., 6, 1863, p. 2. Chapman, Canadian Jour. n. B., 8, 1863, p. 30. 

 Expos. Min., Geol., Canada, 1864, p. 138. Salter, Mon. British Tril., Pal. 

 Soc., 1867, pp. 180, 182. Malaise, Desc. Terr. Sil. du Centre de la Belgique, 

 1873, p. 85. Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell., 

 Konigsberg, 1874. p. 40. Holm, Bihang K. Svenska Vet.-Hand., 7, 1882, pp. 

 12, 15. Zittel, Handbuch d. Pal., 2, 1885, pp. 610, 611. Holm, Mem. 1'Acad. 

 Imp. Sci. St. Petersburg, 7th ser., 33, 1886, pp. 18, 20, 42. Clarke, Jour. 

 Morph., 2, 1888, pp. 254, 264. Miller, N. A. Geol. Pal., 1889, p. 550. 

 Koken, DieLeitfossilien, Leipzig, 1896, p. 28, fig. 17, figs. 1-3. Beecher, Amer. 

 Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3, fig. 19. Reed, Geol. Mag., dec. 4, 

 1, 1898, p. 499. Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 630. 

 Grabau, Bull. New York State Mus. 45, 1901, p. 222. Jaekel, Zeits. d. d. 

 geol. Gesell., 53, 1901, p. 149. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, 

 p. 222. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, 1901, pp. 25, 26, 

 57. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292. Raymond, 

 Zittel-Eastman Textb. Pal., 1913, p. 719. 



Illsenus aboynensis Whiteaves. 



Illaenus aboynensis Whiteaves, Geol. Surv. Can., Pal. Foss., 3, pt. 2, 1895, p. 108, 



pi. 15, figs. 7-8. 

 Niagaran (Guelph): Aboyne, Ontario. 



Illsenus ambiguus Foerste. 



Illsenus ambiguus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 106, pi. 14, 



figs. 9a, 9b, lOa-lOc, 11; 15th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 



1887, p. 480, fig. 3, p. 478; Bull. Sci. Lab. Denison Univ., 2, 1887, p. 94; 



Proc. Boston Soc. Nat. Hist., 24, 1889, p. 267; Geol. Surv. Ohio, 7, 1893, p. 



525, pi. 26, 9a-9b, lOa-lOc, 11. 

 Upper Medinan (Brassfield): Dayton, Ohio; Hanover, Indiana. 



Illaenus amerlcanus (Billings). 



Illsenus crassicauda Hall (not Wahlenberg), Pal. New York, 1, 1847, p. 24, pi. 4 

 (bis), fig. 13. Marcou, Geol. Map U. S., Boston, 1853, p. 22, pi. 1, fig. 2. 

 Emmons, Amer. Geology, 1, pt. 2, 1855, p. 215, pi. 18, fig. 5; pi. 15, fig. 15; 

 pi. 3, fig. 13; Manual Geol., 1860, p. 100, fig. 89. Lincklaen, 14th Rep. New 

 York State Cab. Nat. Hist., 1861, pi. 3, fig. 9. Hitchcock, Geol. Vermont, 1, 

 1862, p. 280. Chapman, Canadian Jour., n. s., 8, 1863, p. 30, fig. 143; p. 

 201, fig. 196a; Expos. Min., Geol. Canada, 1864, p. 138, fig. 143; p. 173, fig. 

 196a. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 322, pi. 3, fig. 

 la, b. Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig. Brainerd and 

 Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22. Clarke and Ruedemann, 

 Bull. New York State Mus., 65, 1903, p. 716. 



Illaenus americanus Billings, Canadian Nat. Geol., 4, 1859, p. 371; Pal. Foss., 1, 

 Geol. Surv. Canada, 1865, p. 329, fig. 316a-d, 318. Clarke, Geol. Minnesota, 

 3, pt. 2, 1894, p. 714, figs. 20-23. Whiteaves, Pal. Foss., Geol. Surv. Canada, 

 3, pt. 3, 1897, p. 234. Ruedemann, Bull. New York State Mus., 49, 1901, p. 

 61. Raymond and Narraway, Ann. Carnegie Mus., 4, nos. 3, 4, 1908, pi. 60, 

 figs. 1-3. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, fig. 1604. 



Illsenus taurus Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 49. Meek and Worthen; 

 Geol. Surv. Illinois, 3, 1868, p. 320, pi. 3, fig. 2. Miller, N. A. Geol. Pal., 

 1889, p. 551, fig. 1017. Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, 

 p. 73, pi. 12, figs. 4-9. Rowley, Missouri Bur. Geol. and Mines, 2d ser., 8; 

 1908, p. 57, pi. 15, fig. 1. 



Trenton: Ottawa, L'Original, etc., Canada; New York; Illinois; Wisconsin, 

 Minnesota; etc. 



