376 



INDEX 



Gyracanthus, 61 



character of genus, llh 

 Gyracanthus incurvus, 114, 276 



primaevus, llh 



sherwoodi, 114, 117, 287, 289 



H 



Hackberry beds, 47 



Haeckel, mentioned, 157 



Haemal arches in Coccosteus, 185 



Hag-fishes, 70 



Hall, James, cited, 239 



Hamilton series, correspondence of, 



with Cedar Valley, 46 

 fish remains in, 107, 109, 114, 126, 



134, 137, 139, 140, 142, 144, 154, 



198, 204, 207, 240, 241, 276-279 

 H-aplistia, 69 

 Harpacanthus, 119, 150 

 Harvard museum, see Museum of 



Comparative Zoology 

 Hawkesbury formation, New South 



Wales, fish remains in, 104 

 Hay, O. P., cited, 104, 109, 110, 113, 



160, 275 

 Helderberg beds, 83 

 Helderbergian series (?), Nova Scotia, 



fish remains from, 276 

 Heliodus lesleyi, 213, 288 

 Helodus comptus, 112 

 gibberulus, 112, 287 

 Hemlock Lake, New York, fish remains 



from, 260 

 Hennig, E., cited, 169, 175, 176 

 Herefordshire, England, fish remains 



from, 58 

 Heteracanthus, 137 



characters of genus, 138 

 in Iowa Devonian, 49 

 Heteracanthus politus, 138, 277, 281 



uddeni, 139, 211 

 Heterostraci, 69 

 divisions of, 55 

 occurrence of, 72 

 High Point sandstone, New York, list 



of fossil fishes from, 132, 287 

 Hinde, G. J., cited, 53 

 Hinds, Henry, work of, on coal, 1 

 Hoats, J. H., mentioned, 147 

 Holauchenia, 160 



Holocephali, 68. 69 



characters of subclass, in 



dermal plates of, 149 

 Holonema, dentition of, 181 



relations to Mylostomids, 206 

 Holonema horridum, 206, 288 



rugosum, 92, 206, 288, 289 

 Holoptychiidae, characters of family, 



238 

 Holoptychius, 117, 236, 238 



scales of, 279 

 Holoptychius americanus, 92, 239. 288, 

 290 



filosus, 239, 288 



flabellatus, 239 



giganteus, 239, 287, 288, 290 



granulatus, 239, 288 



halli, 239, 290 



latus, 239 



pustulosus, 239, 288 



quebecensis, 280 



radiatus, 290 



serrulatus, 239 



tuberculatus, 239, 287, 289 

 Homacanthus, characters of genus, lot 

 Homacanthus acinaciformis, 151, 287 



delicatulus, 152 



gracilis, 152, 276 

 Homosteus, development of, 163, 164 



relations of, 167, 171 

 Hoplonchus parvulus. 152, 283 

 Hunsruck slates, Prussia. Ostraco- 



phores from, 54 

 Huron shales, Ohio, fish remains in. 



109, 282, 283, 285 

 Hussakof, L., cited, 124, 131, 146, 161. 

 166, 177, 179, 189, 191, 193, 194. 

 198, 200. 225, 226, 239, 250, 275 

 Huxley, T. H., cited, 65, 66, 96, 208, 211, 



237, 242, 243, 246, 251 

 Hydraulic limestone, Wisconsin, fish 



remains from, 19S 

 "Hyostyly", 65, 96 

 Hyperoartia, 69 

 Hvperotreta, 69 



I 



Ichthyodorulites, 150 

 ."Ichthyopterygium" of fishes, 95 

 Ichthyotomi, 68, 69 

 characters of order, 101 



