bLBLlUGhAlMllC J.lHl OF GEMKHA A>OD HPECIBS. 829 



Cyclocystoldes huronensis BillmgB. 



OyclocyetoidoH Hiirononsis lUUiiigs, Pal. Foss., 1, Geul. Sui'v. Canada, 1866, p. 393, 



fig. 369.— Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 29, pi. 3. fig. 2. 

 Riclimond: Rabbit Island, LakeHiiron. 



(!yclocystoide.s lUiuoIsensi.s Miller and Gurley. 



Oyclocystoides illinoisensis Miller and Giirley, Bull. Illinois State Mus. Nat. Hist., 



6, 1895, p. 61, pi. 5, figs. 27, 28.— Savage, Bull. Geol. Sur\'. IllinoL«<, 23, 1913, 



p. 40, pi. 1, fig. 2. 

 Upper Medinan (Girardeau): Orchard Creek, Alexander County, lUinoi';. 



Cyclocystoides magnus Miller and Dyer. 



Oyclocystoides magnus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, 



p. 32, pi. 2, figs. 8, 8a.— Miller, Jour. Cincinnati Soc. Nat. Hi-st.. 4, 1881, p. 70, 



pi. 1, figs. 2, 2a; N. A. Geol. Pal., 1889, p. 237. 

 Cyclocystoides sp. (?C. magnus) Miller and Faber, Jour. Cincinnati Soc. Nat. 



Hist., 15, 1892, p. 85, pi. 1, figs. 13-15. 

 Richmond (Waynesville) : Near Mon-ow and Wayiiesville, Ohio. 

 ?Maysville: Cincinnati, Oliio. 

 Plesiotype.—C&t. No. 40733, U.S.N.M. 



Cyclocystoides minus Miller and Dyer. 



Cyclocystoides minus Miller and Dyer, Jour, t'incinnati Soc. Nat. Hist.. 1, 1878, 



p.33, pi. 2, fig.5. 

 Richmond: Morrow, Ohio. 



Cyclocystoides mundulus Miller and Dyer. 



Cyclocysfoides mundulus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 



1878, p. 34, pi. 2, fig. 7. 

 Richmond: Morrow, Ohio. 



Cyclocystoides nitidus Faber. 



Cyclocystoides nitidus Faber, Jem". Cincinnati Soc. Nat. Hist., 9, 1886, p. 17, pi. 1, 



fig. 1. 

 Maysville (Corry^^.lle) : Near Transit, <^hio. 



Cyclocystoides parvus Miller and Dyer. 



Cyclocystoides parvus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist. .1, 1878, 



p. 33, pi. 2, fig. 6. 

 Richmond: Morrow, Ohio. 



Cyclocystoides saltcri Hall. 



Cyclocystoides salteri Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 



218, pi. 6, fig. JG (adv. sheets, 1871).— Bather, Treatise on Zool., pt. 3, 



Echinoderma, London, 1900, p. 211, fig. 8. 

 Trenton: Near Saratoga, New York. 



CYCLOGNATHUS Linuarsson. Genotype: C. rnicropygus Linnamson. 



Cyclognathus Linuarsson, Geol. Foren. Stockholm Forh., 2, No. 12, 1875, p. 600. — 

 Brogger, Die sil. Etagen 2-3, Kristiania, 1882, p. 109.— Zittel, Handb. d. Pal., 

 2, 1885, p. 596.— Koken, Die Leitfossilien, Leipzig, 1896, p. 19. 



Cyclognathus rotundifrons Matthew. 



Cyclognathus rotundifrons Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, 



p. 107, pi. 7, figs. 16a, b. 

 C^uiadian (Bretonian — Div. r3d): St. John, New Brun.swirk. 



