612 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



HETEROCRINUS LAXUS Hall. See Ohiocrinus laxue. 



Heterocrinus miller! Wetherby. 



Heterocrinus Milleri Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153, 



pi. 5, fig. 3. 

 Stenocrinus Milleri Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 



1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). 

 Trenton (Curdsville): Mercer County, Kentucky; Kirkfield, Ontario. 



HETEROCRINUS OEHANUS Miller. See Ohiocrinus laxus. 



Heterocrinus pentagonus Ulrich. 



Heterocrinus pentagonus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 176, 

 pi. 5, figs. 10 and lOa. 



Stenocrinus pentagonus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). 



Maysville (Corryville): Cincinnati, Ohio, and vicinity. 



HETEROCRINUS? (IOCRINUS) POLYXO Hall. See locrinus subcrassus. 

 HETEROCRINUS SIMPLEX Hall. See Ectenocrinus simplex. 

 HETEROCRINUS SIMPLEX var. GRANDIS Meek. See Ectenocrinus grandis. 

 HETEROCRINUS SUBCRASSUS Meek and Worthen. See locrinus subcrassus. 



Heterocrinus tenuis Billings. 



Heterocrinus tenuis Billings, Geol. Surv. Canada, Rep. Progress, 1853-56, 1857, 



p. 273; Geol. Surv. Canada, dec. 4, 1859, p. 50, pi. 4, fig. 6a-b; pi. 10, figs. 



la-e. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 502. Springer, 



Mem. Geol. Surv. Canada, 15P, 1911, p. 25. 

 Stenocrinus tenuis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 



1886, p. 132 (Rev. Pal., pt. 3, sec. 2, p. 208). 

 Trenton (Curdsville): Ottawa and Kirkfield, Ontario; Montreal, Quebec. 



HETEROCRINUS VAUPELI Wetherby. See Ohiocrinus constrictus. 



HETEROCYSTITES Hall. Genotype: H. armatus 



Heterocystites Hall, Pal. New York, 2, 1852, p. 229. Pictet, Traite de Pal., 

 ed., 4, 1857, p. 303. Hall, Pal. New York, 3, for 1859, 1861, p. 152. Mill 

 N. A. Geol. Pal., 1889, p. 253. Bather, Treatise on Zool. (Lankester), pt. 

 1900, p. 67, fig. 36, 7. 



Heterocystites armatus Hall. 



Heterocystites armatus Hall, Pal. New York, 2, 1852, p. 229, pi. 49A, figs. 3a-c.- 



Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 345. 



Niagaran (Lockport): Lockport, New York. 



HETERODICTYA Zittel. See Ptilodictya Lonsdale. 

 HETERODICTYA PAVONIA Ulrich. See Escharopora pavonia. 



HETERONEMA Ulrich and Bassler. Genotype: H. capillare Ulrich and Basslc 

 Heteronema Ulrich and Bassler, Smith. Misc. Coll., 45, 1904, p. 278. Bassler, 

 Bull. U. S. Nat. Mus., 77, 1911, p. 57; Zittel-Eastman Textb. Pal., 1913, 

 p. 318. 



