BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1273 



THALEOPS Conrad. Genotype: T. ovatua Conrad. 



Thaleops Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, pp. 331-2.— Hall, 

 Pal. New York, 1, 1847, p. 259.— Clarke, Geol. Minnesota, 3, pt. 2, 1897, 

 p. 716. — Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 247. — 

 Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 298.— -Slocom, Field Mus. 

 Nat. Hist., Geol. Ser., 4, 1913, p. 56.— Raymond, Zittel-Eastman Textb. Pal., 

 1913, p. 720. 



Thaleops arcturus (Hall). 



Illaenus arcturus Hall, Pal. New York, 1, 1847, p. 23, pi. 4 (bis), lig. 12. — Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 235, pi. 3, fig. 12. — Billings, Canadian 



Nat. Geol., 4, 1859, p. 379. — Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 



1S89, p. 299, figs. 

 Thaleops arctura Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 718. — Raymond and 



Narraway, Ann. Carnegie Mus., 4, 190S, p. 248, pi. 61, fig. 8. — Raymond, Ann. 



Carnegie Mus., 7, 1910, p. 71; 7th Rep. Vermont State Geol., 1910, p. 227, 



pi. 35, fig. 5.— Grabau and Shimer, N. A. Index Fossils, 1910, p. 298, fig. 



1605b. 

 Thaleops ovatus Raymond, Bull. Amer. Pal., 3, 1902, pi. 18, fig. 9; Ann. Carnegie 



Mus., 3, 1905, p. 352, pi. 13, fig. 5. 

 Chazyan (Day Point — Valcour): Chazy, Crown Point, Yaleour, etc., New York; 



Isle La Motte, Vermont. 



Thaleops clavifrons (Billings). 



Illsenus clavifrons Billings, Canadian Nat. Geol., 4, 1859, p. 379. 

 Chazyan (Mingan): Mingan Islands, Canada. 



Thaleops ovatus Conrad. 



Thaleops ovata Conrad, Proc. Acad. Nat. Sci., Philadelphia, 1, 1843, p. 332. — • 

 Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 716, fig. 25-28.— Ruedemann, Bull. 

 New York State Mus., 49, 1901, p. 62. — Raymond and Narraway, Ann. Car- 

 negie Mus., 4, 1908, p. 247, pi. 60, figs. 11-13; pi. 61, figs. 6, 7.— Grabau and 

 Shimer, N. A. Index Fossils, 2, 1910, p. 298.— Slocom, Field Mus. Nat. Hist., 

 Geol. Ser., 4, 1913, p. 56, pi. 14, figs. 6-8. 



Thaleops (Illasnus) ovatus Hall, Pal. New York, 1, 1S47, p. 259, pi. 67, figs, (ia, b; 

 p. 318, pi. 67, fig. 6c. 



Illeenus ovatus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 76 (gen. 

 ref.).— Billings, Canadian Nat. Geol., 4, 1859, p. 376 (loc. occ.).— Whitfield, 

 Geol. Wisconsin, 4, 1882, p. 238, pi. 5, figs. 1, 2.— Chamberlin, Geol. Wiscon- 

 sin* 1, 1883, p. 160, fig. 



Illaenus herricki Foerste, 15th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1887, 

 p. 479, fig. 2. 



Black River: Mineral Point, Beloit, Wisconsin; Dixon, Illinois; Minneapolis, 

 Minnesota (Platteville); Ottawa, Ontario. 



'/Richmond (Maquoketa): Clermont, Iowa. 



Thaleops ovatus Raymond. See Thaleops arcturua. 



Thaleops? pterocephalus (Whitfield). 



Illsenus pterocephalus Whitfield, Ann. Rep. Geol. Surv., 1878, p. 87; Geol. 



Wisconsin, 4, 1882, p. 309, pi. 20, figs. 10-12. 

 Xiagaran (Racine): Pewaukee, Wisconsin. 



Thaleops vindex (Billings). 



Illanus vindex Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 179, figs. 



160a, b.— Raymond, Ann. Carnegie Mus., 3, 1905, p. 353, fig. 2. 

 Chazyan (Mingan): Mingan Islands, Canada. 



