776 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Lyrodesma poststriatum Continued. 



Lyrodesma poststriata Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 176, 

 figs. 167a, b. Nicholson, Hep. Pal. Prov. Ontario, pt. 2, 1875, p. 36, fig. lib. 

 Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 368, figs. Miller, N. A. 

 Geol. Pal., 1889, p. 487, fig. 844. Grabau and Shimer, N. A. Index Fossils, 1, 

 1909, p. 481. Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 306. 

 Cincinnatian: Loraine, Pulaski, etc., New York (Pulaski); Cincinnati, Ohio, and 

 vicinity (Maysville). 



LYDRODESMA PULCHELLA Hall. See Ctenodonta pulchella. 



Lyrodesma schucherti Ruedemann. 



Lyrodesma schucherti Ruedemann, Bull. New York State Mus., 62, 1912, p. 103, 



pi. 6, fig. 12. 

 Trenton (Snake Hill): Snake Hill, Saratoga County, New York. 



Lyrodesma subplanum Ulrich. 



Lyrodesma subplanum, Ulrich, Geol. Surv. Ohio, 7, 1893, p. 683, pi. 47, fig. 8. 



Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 136. 

 Trenton (Upper): Covington, Rogers Gap, etc., Kentucky. 

 Holotype.C&t. No. 46225, U.S.N.M. 



LYSOCYSTIS Bather. See Lysocystites Miller. 



LTSOCYSTITES Miller. Genotype: Echinocystites nodosus Hall. 



Echmocystites Hall, 18th Rep. New York State Cab. Nat. Hist., 1864, p. 12 (adv. 



sheets); 20th Rep. New York State Cab. Nat. Hist., doc. ed., 1867, p. 316; 



rev. ed., 1870, p. 360. Zittel, Handb. Pal., 1, 1879, p. 413. Bather, Geol. 



Mag., dec. 4, 6, 1897, p. 381; Treatise on Zool. (Lankester), pt. 3, 1900, p. 70. 

 Echinocystis Haeckel, Amphor. und Cystoid., 1896, p. 146, pi. 4, figs. 31-34. 

 Lysocystites Miller, N. A. Geol. Pal., 1889, p. 259 (Echinocystites preoccupied). 

 Lysocystis Bather, Geol. Mag., dec. 4, 4, 1897, p. 381. 



Lysocystites nodosus (Hall). 



Echinocystites nodosus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 



(extras, 1864), p. 316, pi. 12 (3), figs. 10, 11; rev. ed., 1870, p. 361, pi. 12, figs. 



10. 11, Chamberlin, Geol. Wisconsin, 1883, 1, p. 191, fig. 

 Lysocystites nodosus Miller, N. A. Geol. Pal., 1889, p. 259 (gen. ref.). 

 Niagaran (Racine): Racine, Wisconsin. 



MACHAIRODTJS INCURVUS Pander. See Distacodus incurvus. 



MACLUREA of authors. See Maclurites Leseuer. 



MACLUREA GUN E ATA Wbitfield. See Maclurina cuneata. 



MACLUREA LABIATUS Emmons and Owen. See Raphistoma stamineurn. 



MACLUREA MANITOBENSIS Whiteaves. See Maclurina manitobensis. 



MACLUREA STRIATA Emmons. See Raphistoma striatum. 



MACLUREA SUBROTUNDA Whitfield. See Maclurina subrotunda. 



MACLURINA Ulrich and Scofield. Genotype: Maclurea manitobensis Whiteaves. 

 Maclurina Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 1038-1041. 

 Koken, Neues. Jahrb. Min., Geol. Pal., 1, 1898, p. 21. 



Maclurina cuneata (Whitfield). 



Maclurea cuneata Whitfield, Ann. Rep. Geol. Surv. Wisconsin, 1878, p. 75; Geol. 

 Wisconsin, 4, 1882, p. 246, pi. 9, figs. 5-6. 



