18 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Actinostroma tenuifllatum inflectum — Continued. 



Actinostroma tenuifilatum var. inflectum, Parks, Univ. Toronto Studies, Geol. 



Ser. No. 6, 1909, p. 25, pi. 19, figs. 1 and 2. 

 Niagaran: Pagwachuan Paver and Little Current River, Canada. 



Actinostroma tenuissimum Parks. 



Actinostroma tenuissimum Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909, 



p. 42, pi. 18, figs. 2, 3, 9, and 12. 

 Cayugan (Cobleskill): Schoharie County, New York. 



Actinostroma? trentonense Ulrich and Everett. 



Actinostroma? trentonenvie Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, j). 



282, pi. 7, figs. 3a, b. 

 Black Biver (Platteville): Near Dixon, Illinois. 

 Sections of holotype— Cat. No. 46545 U.S.N.M. 



Actinostroma trentonensis Weller. See SolenoiJora compacta. 



Actinostroma vulcana Parks. 



Actinostroma vulcana Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 10, 



pi. 1, figs. 1, 2, 5. 

 Niagaran (Guelph): Durham, Ontario. 



Actinostroma whiteavesi niagarense Parks. 



Actinostroma whiteavesii var. niagarense Parks, Univ. Toronto Studies, Geol. 



Ser., No. 5, 1908, p. 11, pi. 12, figs. 4-5. 

 Niagaran (Lockport): Thorold, Ontario. 



.^CHMINA Jones and Holl. Genotype: A. cuspidata Jones and Holl, 



^chmina Jones and Holl, Ann. Mag. Nat. Hist., 4th eer., 3, 1869, p. 217.— Zittel, 

 Handb. Pal., 2, 1885, p. 557.— Vogdes, Ann. New York Acad. Sci., 5, 1889, 

 p. 4, pi. 2, fig. 6.— Miller, N. A. Geol. Pal., 1st App., 1892, p. 704.— Koken, 

 Die Leitfossilien, Leipzig, 1896, p. 40. — Grabau, Bull. Buffalo Soc. Nat. Sci., 

 6, 1899, p. 308.— Ulrich, Zittel-Eastman Textb., Pal., 1, 1900, p. 644.— 

 Grabau, Bull. New York State Mus., 45, 9, 1901, p. 220; Bull. Buffalo Soc. 

 Nat. Sci., 7, 1901, p. 220.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, 

 p. 345.— Bassler, Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 738. 



iEchmina abnormis Ulrich. 



iEchmina abnormis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, i\ 183, 

 pi. 12, figs. 7a, 7b.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346, 

 fig. 1660, h-j. 



Clinton (Rochester): Lockport, etc. New York, Maryland, etc. 

 Holotype.— Cat. No. 41372, U.S.N.M. 



^CHMiNA Byrnesi Jones. See Dicranella? byrnesi. 



.^chmina spinosa (Hall). 



Cytherina spinosa Hall, Pal. New York, 2, 1852, p. 317, pi. 67, figs. 17-21. 

 Beyrichia spinosa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80 



(gen. ref.). 

 .ZEchmina spino.m Jones and Holl, Ann. Mag. Nat. Hist., 4th ser., 3, 1869, p. 218 



(gen. ref.). — Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 11, pi. 13, 



figs. 4-8.— Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 220, fig. 152; 



Bull. New York State Mus., 45, No. 9, 1901, p. 220, fig. 152.— Grabau and 



Shimer, N. A. Index Fossils, 2, 1910, p. 345, fig. 1659. 

 Clinton (Rochester): Lockport, Rochester, etc.. New York; Ontario; Pemisylvania; 



Maryland. 



