18 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Actinostroma tenuifilatum in flee turn Continued. 



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



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

 Niagaran: Pagwachuan River and Little Current River, Canada. 



Actlnostroma tenuissimum Parks. 



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



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

 ( ;iyugan (Cobleskill) : Schoharie County, New York. 



Actinostroma? trentonense Ulrich and Everett. 



Actinostroma? trentonense Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 



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



Black River (Platteville): Near Dixon, Illinois. 

 Sections oiholotype.Vat. No. 46545 U.S.N.M. 



ACTLNOSTROMA TRENTONENSIS Weller. See Solenopora 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. 



J3CHMINA 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. 



abnormis Ulrich. 



JSchmina abnormis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 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.C&t. No. 41372, U.S.N.M. 



.ECHMINA BYRNESI Jones. See Dicranella? byrnesi. 



.'Echmina 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.). 

 2Echmina spinosa 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; Pennsylvania; 



Maryland. 



