BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 601 



Hellolites subtubulatus Continued. 



Heliolitea Murchisoni Milne-Edwards and Haime, British Foss. Corals, 1855, p. 



250, pi. 57, figs. 6a-c; Polyp. Foss. dea Palaeoz., 1851, p. 215. 

 Heliolitea microporus Eichwald, Leth. Iloaaica, 1860, p. 454, pi. 25, figa. 7a-c. 

 Silurian: Europe, Canada, Michigan, Iowa, Kentucky, Tenneasee, Ohio, etc. 



(Niagaran). 



Hellolites subtubulatus distans Foerste. 



Heliolites subtubulata-distans Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 



3-5, pi. 3, fig. 5B. 

 Clinton (Waco): Near Waco and near Irvine, Kentucky. 



Heliolites subtubulatus nucella Foerate. 



Heliolites subtubulata-nucella Foerate, Bull. Kentucky Geol. Surv., 7, 1906, p. 



305, pi. 3, fig. 5A. 

 Clinton (Waco): North of Estill Springs, Kentucky. 



HELIOLITES TENUIS Billings. See Protarea tenuis. 

 HELIOLITES VETUSTA Hall. See Protarea vetusta. 



HELIOMERA Raymond. Genotype: Cheirurus sol Billings. 



Heliomera Raymond, Amer. Jour. Sci., 20, 1905, p. 381. 



Hellomera sol (Billings). 



Cheirurua sol Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 288, fig. 276. 

 Heliomera sol Raymond, Amer. Jour. Sci., 20, 1905, p. 381; Ann. Carnegie Mus., 7, 



no. 1, 1910, p. 77, pi. 18, fig. 12, fig. 9; 7th Rep., Vermont State Geol., 1910, 



p. 245, pi. 38, fig. 12. Perkins, Rep. Vermont State Geol., 8th ser., 1912, pi. 



18, fig. 12. 

 Chazyan: Table Head and four miles northeast Portland Creek, Newfoundland 



(Quebec-N., P.); Chazy, New York (Day Point). 



HELIOPHRENTIS Grabau. Genotype: H. alternata Grabau. 



Heliophrentis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 98. 



Hellophrentls alternata Grabau. 



Heliophrentis alternatum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 



99, pi. 12, figs. 2, 3. 

 Upper Monroan (Amherstburg): Detroit River, near Amherstburg, Ontario. 



Heliophrentis alternata compressa Grabau. 



Heliophrentis alternatum mutation compressa Grabau, Michigan Geol. Surv., 



Geol. Ser., 1, 1909, p. 100, pi. 13, figs. 4, 5. 

 Upper Monroan (Amherstburg): Detroit River bed, opposite Amherstburg, 



Ontario. 



Heliophrentis alternata magna Grabau. 



Heliophrentis alternatum mut. magna Grabau, Michigan Geol. Surv., Geol. Ser., 



1, 1909, p. 101, pi. 13, fig. 6. 

 Upper Monroan (Amherstburg): Detroit River bed, opposite Amherstburg, 



Ontario. 



Hellophrontis carinata Grabau. 



Heliophrentis carinatum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 



101, pi. 12, fig. 2; pi. 13, fig. 7. 



Upper Monroan: Near Amherstburg, Ontario, and Wayne County, Michigan 

 (Amherstburg); Monroe County, Michigan (?Lucas). 



