546 



FOSSIL VERTEBRATA OF NORTH AMERICA. 



[BULL. 179. 



HELCURA E. Hitch. Type H. Moralis E. Hitch. 



Hitchcock, E. 1848 A, p. 244. 

 1858 A, p. 141. 



Helcura anguinea E. Hitch. 

 Hitchcock, E. 1858 A, p. 1.41, pi. xxxvi, fig. 9. 

 Triassic; Massachusetts. 



Helcura littoralis E. Hitch. 



Hitchcock, E. 1848 A, p. 244, pi. xv, fig. 1; pi. xxiii, 

 fig. 3. 



Hitchcock, C. H. 1889 B, p. 119. (H. caudata.) 

 Hitchcock, E. 1858 A, p. 140, pi. xxxvii, fig. 3; pi. 

 xl, fig. 1. (H. caudata.) 

 Triassic; Massachusetts. 



Helcura surgens E. Hitch. 



Hitchcock, E. 1858 A, p. 141, pi. xxxvi, fig. 10. 

 Hitchcock, C. H. 1889 B, p. 119. 

 Triassic; Massachusetts. 



HOPLICHNUS E. Hitch. Type H. quadrupedcms E. Hitch. 



Hoplichnus quadrupedans E. Hitch. 



Hitchcock, E. 1848 A, p. 230. 



1858 A, p. 134. 



It is doubtful whether or not this genus of 



footmarks was produced by a vertebrate animal. 



Hoplichnus equus E. Hitch. 

 Hitchcock, E. 1858 A, p. 134, pi. xxiv, figs. 3-5. 

 Hitchcock, C. H. 1889 B, p. 119. 



Triassic; Massachusetts, Connecticut? 



Hitchcock, E. 1848 A, p. 230, pi. xvi, figs, 7, 8; pi. 



xxii, fig. 3. 



Hitchcock, C. H. 1889, B, p. 119. (H. poledrus.) 

 Hitchcock, E. 1858 A, p. 136, pi. xxiv, figs. 6, 7; 



pi. xlviii, fig. 9. (H. poledrus.) 

 Triassic; Massachusetts. 



HYLOPUS Dawson. Type H. logani Dawson. 



Dawson, J. W. 1894 A, p. 260. 



1895 A, p. 77. 



Hylopus caudifer Dawson. 



Dawson, J. W. 1895 A, p. 78. 

 Coal-measures; Nova Scotia. 



Hylopus hardingi Dawson. 

 Dawson, J. W. 1895 A, p. 78. 



Subcarboniferous; Nova Scotia. 



Hylopus logani Dawson. 

 Dawson, J. W. 1894 A, p. 260, figure. 



1896 A, p. 78. 

 Subcarboniferous; Nova Scotia. 



Hylopus minor Dawson. 



Dawson, J. W. 1895 A, p. 78. 

 Coal-measures; Nova Scotia. 



Hylopus? trifidus Dawson. 



Dawson, J. W. 1895 A, p. 78. 

 Coal-measures: Nova Scotia. 



Hylopus sp. indet. 



Dawson, J. W. 1895 A, p. 78. 

 Coal-measures; Nova Scotia. 



HYPHEPUS E. Hitch. Type H. fieldi E. Hitch. 



Hitchcock, E. 1858 A, pp. 97, 180. 

 Hyphepus fieldi E. Hitch. 

 Hitchcock, E. 1858 A, pp. 97, 189, pi. xvii, fig. 2; 

 pi. xxxv, fig. 11; pl.xli,fig.2; pl.xlii, fig. 2. 



Hitchcock, C. H. 1889 B, p. 118. 

 Triassic; Massachusetts. 



ISOCAMPE E. Hitch. Type /. slraia E. Hitch. 



Hitchcock, E. 1858 A, p. 119. 

 Isocampe strata E. Hitch. 

 Hitchcock, E. 1858 A, p. 120, pi. xx, 

 xxxvi, fig. 5. 



Hitchcock, C. H. 1889 B, p. 118. 



Triassic; Connecticut, Massachusetts. 



LANGUNCULAPES E. Hitch. Type L. lotus E. Hitch. 



Hitchcock, E. 1858 A, p. 132. 



liangunculapes latus E. Hitch. 

 Hitchcock, E. 185& A, p. 132, pi. xxiv, fig. 1; pi. 

 Xlv, fig. 4. 



Hitchcock, C. H. 1889, B, p. 119. 

 Triassic; Massachusetts. 



