104 The Ottawa Naturalist. [Nov. 



E. punctatus praecursor (Matthew). Trans. Roy. Soc. Can., 

 1885, 3, sect. 4, p. 75, pi. 7, fig. 13. E. praecursor. 



E. punctatus pulchellus (Matthew). Trans. Rov. Soc. Can., 

 1885, 3, sect. 4, p. 74, pi. 7, figs. 12a-c. E. pulchellus. 



E. scanius (Linnarsson). Sveriges Geologiska Undersokning, 

 1883, ser. C, No. 54, p. 29, pi. 4, figs. 17, 18. Groenwald, Born- 

 holms Paradoxideslag, p. 79, 1902. (Referred by Lake to 

 E. punctatus). 



E. scanius eucentrus (Linnarsson). Groenwald, Bornholms 

 Paradoxideslag, 1902, p. 79, pi. 1, fig. 20. (Referred by Lake 

 to E. punctatus). 



E. schucherti Matthew. Amcr. Geol., 1896, 18, p. 30. Trans. 

 N. Y. Acad. Sci., 1896, 15, p. 238, pi. 17, figs. 4a-l>. 



E. speciosus (Ford). Am. Jour. Sci., 1873, 6, ser. 3, p. 137, 

 figs. 2, a, b.; Ibidem, 1877, 13, p. 147. Walcott, Bull. 30, U. S. 

 G. S., 1886, p. 154, pi. 16, figs. 3a-c; 10th Ann. Rept. U. S. G. S., 

 1891, p. 632, pi. 81, figs. 5, 5a-c Matthew, Trans. N. Y. Acad. 

 Sci., 1896, 15, p. 236, pi. 17, fig. 6. Lake, Brit. Camb. Trilobites, 

 1907, p. 33, pi. 3, fig. 7. Cobbold, Quart. Jour. Geol. Soc. 

 London, 1910, 66, p. 23. 



Genus Goniodiscus. 



G. dawsoni (Hartt). Acadian Geology, 2d Ed. 1868, p. 654, 

 p. 228. Whiteaves, Am. Jour. Sci., 1878, 16, ser. 3, p. 225- 

 Walcott, Bull. 10, U. S. G. S., 1884, p. 23, pi. 2, figs. 3, 3a.- 

 Matthew, Trans. Roy. Soc. Can., 1885, 3, sect. 4, p. 75, pi. 7, 

 figs, lla-c; Trans. N. Y. Acad. Sci., 1896, 15, p. 240, pi. 17, 

 figs. 5a-e. (? 5a, 5b). 



G. lobatus (Hall). Agnostus lobatus Hall. Pal. N. Y., 1847, 

 1, p. 258, pi. 67, figs. 5a-f. Rogers, Geol. Penna., 1858, 2, p. 820, 

 fig 614 (1-4). Microdiscus lobatus. Ford, Am. Jour. Sci., 1873, 

 6, ser. 3, p. 135 footnote Walcott, Bull. 30, U. S. G. S., 1886, 

 p. 156, pi. 16, figs, la, b; 10th Ann. Rept. U. S. G. S., 1891, p. 632, 

 pi. 81, figs. 4a, b. Shaler and Foerste, Bull. Mus. Comp. Zool., 

 1888, 16, p. 36, pi. 2, fig. 13. Matthew, Amer. Geol, 1896, 18, 

 p. 30. Grabau, Occ. Papers Bos. Soc, 1900, 4, p. 671. Lake, 

 Mon. Brit. Camb. Tril., 1907, p. 32, pi. 3, figs. 4-6. Cobbold, 

 Quart. Jour. Geol. Soc. London, 1910, 66, p. 22, pi. 3, figs. 17, 18. 



G. parkcri (Walcott). Bull. 30, U. S. G. S., 1886, p. 157, 

 pi. 16, figs. 2, 2a; 10th Ann. Rept. U. S. G. S., 1891, p. 632, pi. 80, 

 figs. 7, 7a. 



G. sculpt us (Hicks). Quart. Jour. Geol. Soc London, 1871, 

 27, p. 400, pi. 16, figs. 9, 9a, 10, 10a- Lake, Brit. Camb. Tril., 

 1907, i>. 35, pi. 3, figs. 9, 10. 



Genus Weymouthia. 



W. nobilis (Ford). Agnostus} ndbilis Ford. Am. jour. Sci., 

 1872, 3, ser. 3, p. 419, figs. 1, 2. Walcott, Bull. 30, U. S. G. S., 



