1038 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Proetus corycceus (Conrad). 



Asaphus corycceus Conrad, Jour. Acad. Nat. Sci. Philadelphia, 1st ser., 8, pt. 2, 



1842, p. 277, pi. 16, fig. 15. Hall, Geol. New York, pt. 4, 1843, tab. org. 



rem., 19, fig. 3. 

 Proetus corycceus Hall, Pal. New York, 2, 1852, p. 315, pi. 67, fig. 15. Lesley, 



Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 767, text figs. 

 Clinton (Rochester) : Lockport, New York. 



Proetus crassimarginatus (Hall). 



Calymene crassimarginatus Hall, Geol. New York, Geol. 4th Dist., 1843, p. 172, 



*fig. 5. 

 Proetus crassimarginatus Hall, 15th Rep. New York State Cab. Nat. Hist., 1862 



(adv. sheets 1861, p. 72), p. 100, pi. 10, fig. 10. Nicholson, Rep. Pal. Prov. 



Ontario, pt. 1, 1874, pp. 123, 124, fig. 56b. Hall, Illust. Dev. Fossils, Geol. 



Surv. New York, Pal., Crust., 1877, pi. 20, figs. 20-31. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 768, figs. Hall and Clarke, Pal. New York, 



7, 1888, p. 99, pis. 20, 22, 25. Whiteaves, Cont. Can. Pal., Geol. Surv. 



Canada, 1, pt. 5, 1898, p. 410. Kindle, 25th Ann. Rep. Indiana Dep. Geol. 



Nat. Res., 1901, p. 750, pi. 30, figs. 1, la, 2, 5, 6. Grabau, Michigan Geol. 



Surv., Geol., 1st ser., 1909, p. 207, pi. 20, figs. 16-18. 

 Devonian (Onondaga): New York, etc. 

 Upper Monroan (Amherstburg) : Detroit River, opposite Amherstburg, Ontario. 



Proetus depressus Weller. 



Proetus? depressus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 249, pi. 22, 



fig. 27. 

 Helderbergian (Decker Ferry): Two miles south of Tristates, New York. 



Proetus determinatus Foerste. 



Bathyurus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 103, pi. 14, 



fig. 5. 

 Proetus determinatus Foerste, ibid., 2, pt. 1, 1887, p. 91, pi. 8, figs. 2, 3, 3a; Geol. 



Surv. Ohio, 7, 1895, p. 523, pi. 26, fig. 5; pi. 27, figs. 2, 3, 3a. Savage, Bull. 

 Geol. Surv. Illinois, 23, 1913, p. 104, pi. 6, figs. 10, 11. 



Upper Medinan: Dayton, Ohio (Brassfield); near Thebes, Illinois, Edgewood 

 and Louisiana, Missouri (Edgewood). 



Proetus? handwerki Weller. 



Proetus? handwerki Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2; 



1907, p. 229, pi. 20, figs. 8, 9. 

 Niagaran (Racine): Near Lemout, Illinois. 



Proetus latimarginatus Weller. 



Proetus latimarginatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi. 14, 



figs. 17-24, (?25). 

 Trenton: Jacksonburg, New Jersey. 



Proetus leptorhachis Holtedahl. 



Proetus leptorhachis Holtedahl, Second Arctic Exp. "From", 1898-1902, No. 32, 



1914, p. 33, pi. 8, fig. 14. 

 Helderbergian (Lower beds): Southwestern Ellesmereland, Arctic America. 



Proetus pachydermatus Barrett. 



Proetus pachydermatus Barrett, Amer. Jour. Sci., 3d ser., 15, 1878, p. 371. 



Weller, Pal. New Jersey, 3, 1903, p. 248, pi. 22, figs. 16-21. Grabau and 



Shimer, N. A. Index Fossils, 2, 1910, p. 299. Maynard, Maryland Geol. Surv., 



Low. Dev., 1913, p. 489, pi. 89, fig. 1. 

 Helderbergian: Nearpass Quarry, New Jersey (two miles south of Tristates, New 



York) (Decker Ferry); Cumberland, Maryland (Keyser). 



