BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 601 



Hellolites subtubulatus — Continued. 



Heliolites Murchisoni Milne-Edwards and Ilaime, British Foss. Corals, 1855, p. 



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

 Heliolites microporus Eichwald, Leth. Rossica, 1860, p. 45-1, pi. 25, figs. 7a-c. 

 Silurian: Europe, Canada, Michigan, Iowa, Kentucky, Tennessee, 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, 



Hellolites subtubulatus nucella Foerste. 



Heliolites subtubulata-nucella Foerste, 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. 



Helioniera sol (Billings). 



Cheirurus sol Billings, Pal. Fosa., 1, Geol. Surv. Canada, 1865, p. 288, fig. 276. 

 Heliomera sol Rajonond, 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. • 



Heliophrentls alternata Grabau. 



Heliophrentis alternatum Grabau, Michigan Geol. Siu^., Geol. Ser., 1, 1909, p. 



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

 Upper IMonroan ( 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. 



Heliophrentis 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 

 (Amherstbui'g) ; Monroe County, Michigan (?Luca8). 



