60 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Archgeocrinus lacunosus (Billings). 



Glyptocrinus lacunosus Billings, Geol. Surv. Canada, Rep. Progress for 1853-1856, 

 1857, p. 261; Geol. Surv. Canada, dec. 4, 1859, p. 61, pi. 8, figs. 3a-3e. 



Archseocrinus lacunosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har- 

 vard, 20, 1897, p. 255, pi. 10, fig. 1. Springer, Mem. Geol. Surv. Canada, 

 15P, 1911, p. 11 (loc. occ.). 



Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. 



Archseocrinus margin at us (Billings). 



Glyptocrinus marginatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 

 1857, p. 260; Geol. Surv. Canada, dec. 4, 1859, p. 59, pi. 9, fig. la. 



Archseocrinus marginatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har- 

 vard, 20, 1897, pp. 254, 275, pi. 20, fig. 2 



Trenton (Curdsville): Ottawa, Ontario. 



Archseocrinus microbasilis (Billings). 



Thysanocrinus (Rhodocrinus) microbasilis Billings, Geol. Surv. Canada, Rep. 

 Progr. for 1853-1856, 1857, p. 264. 



Rhodocrinus microbasilis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 63, pi. 6, 

 fig. 2. 



Archseocrinus microbasilis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool. Har- 

 vard, 20, 1897, p. 256, pi. 10, fig. 2a-c. Springer, Mem. Geol. Surv. Canada, 

 15P, 1911, p. 11 (loc. occ.). 



Trenton (Curdsville): Ottawa and Kirkfield, Ontario. 



Archseocrinus parvus Miller and Gurley. 



Archseocrinus parvus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 



1894, p. 21, pi. 2, figs. 26-28. Miller, N. A. Geol. Pal., 1897, 2d App., p. 734, 



fig. 1298. 

 Chazyan (Ottosee): Knox County, Tennessee. 



Archaeocrinus peculiaris Miller and Gurley. 



Archaeocrinus peculiaris Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 



1894, p. 17, pi. 2, figs. 1-3. Miller, N. A. Geol. Pal., 1897, 2d App., p. 734, 



figs. 1299-1300. 

 Chazyan (Ottosee): Knox County, Tennessee. 



Archseocrinus pyriformis (Billings). 



Thysanocrinus (Rhodocrinus) pyriformis Billings, Geol. Surv. Canada, Rep. 

 Progr. for 1853-1856, 1857, p. 262. 



Rhodocrinus pyriformis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 61, pi. 6, figs, 

 la-d. 



Archseocrinus pyriformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190) (gen. ref.); Mem. Mus. Comp. 

 Zool., Harvard, 20, 1897, p. 255, pi. 10, fig. 3a, b. Grabau and Shimer, N. A. 

 Index Fossils, 2, 1910, p. 550. Springer, Mem. Geol. Surv. Canada, 15P, 

 1911, p. 11. 



Trenton (Curdsville): Ottawa, Montreal, and Kirkfield, Canada. 



ARCHAEOCRINUS? RAMULOSUS Wachsmuth and Springer. See Glyptocrinus ramulosus. 

 ARCH.EOCRINUS SCULPTUS Wachsmuth and Springer. See Diabolocrinus vesperalis. 

 ARCILEOCYATHUS MINGANENSIS Billings. See Archseoscyphia minganensis. 



