BIBLIOGRAPHIC LIST OF GENERA AND SPECIES 6 



Acanthograptus walker! Continued. 

 Niagaran dolomite: Hamilton, Ontario. 

 Clinton (Rochester): Middleport, New York. 

 Pksiotype.C&t. No. 54277, U.S.N.M. 



ACANTHOLENUS Matthew. Genotype: Leptoplastus spiniger Matthew. 



Acantholenus Matthew, Trans. Royal Soc. Canada, 2d ser., 4, sec. 4, 1898, p. 142. 



Acantholenus spiniger (Matthew). 



Leptoplastus spiniger Matthew, Canadian Rec. Sci., 3, 1889, p. 487, fig. 4. 



Anomocare spiniger Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 61, 

 pi. 13, figs. 4a-e. 



Acantholenus spiniger Matthew, Trans. Royal Soc. Canada, 2cl ser., 4, sec. 4, 1898, 

 p. 142, pi. 2, figs. 4a-4e; Bull. Nat. Hist. Soc. New Brunswick, 16, 1898, p. 42. 



Canadian (Bretonian, Div. C 3b): Long Island, Kennebecasis River, New Bruns- 

 wick. 



ACANTHONEMA Grabau. Genotype: A. holopiforme Grabau. 



Acanthonema Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 181. Grabau 

 and Shimer, N. A. Index Fossils, 1, 1909, p. 691. 



Acanthonema holopiforine Grabau. 



Acanthonema holopiformis Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, 



p. 182, pi. 16, fig. 4, pi. 26, figs. 1-3; pi. 23, figs. 6, 8. Grabau and Shimer, 



N, A. Index Fossils, 1, 1909, p. 691. 

 Upper Monroan: Wayne County, Mich., and Otsego, Wood County, Ohio (Lucas); 



Detroit River (Amherstburg). 



Acanthonema holopiforme obsoletum Grabau. 



Acanthonema holopiformis var. obsoleta Grabau, Michigan Geol. Surv., Geol. 



Ser. 1, 1909, p. 183, pi. 26, fig. 1, right half. 

 Upper Monroan (Lucas): Gibraltar quarry, Wayne County, Michigan. 



Acanthonema laxum Grabau. 



Acanthonema laxa Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 183, pi. 

 26, fig. 4; pi. 27, figs. 3, 4. Grabau and Shimer, N. A. Index Fossils, 1, 

 1909, p. 691. 



Upper Monroan: Grosse Island and Wayne County, Mich. (Lucas); Detroit 

 River (Amherstburg). 



Acanthonema newberryi (Meek). 



Orthonema newberryi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1871, p. 81; 



Geol. Surv. Ohio, Pal. 1, 1873, p. 217, pi. 20, figs. 3a-b. Miller, N. A. Geol. 



Pal., 1889, p. 414, fig. 690. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 



1889, p. 566, fig. 

 Acanthonema newberryi Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 



184, pi. 27, fig. 5. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 691, 



fig. 985. 

 Upper Monroan (Lucas): Otsego, Wood County, Ohio. 



ACASTE Goldfuss. See Phacopidella Reed. 



ACERVULARIA Schweigger. 



Genotype: A. baltica Schweigger = A. ananas (Linnaeus). 



Acervularia Schweigger, Handb. der Naturg., 1820, p. 418. Eichwald, Zool. 

 Specialis, pt. 1, Vilnae, 1829, p. 187. Dana, Wilkes' U. S. Expl. Exped., 

 1838-42, 7, Zoophytes, 1846, p. 358; Amer. Jour. Sci. and Arts, 2d ser., 1, 

 1846, p. 184. Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 



