40 Rey. A. E. Haton’s Monograph 
Genus Dyscritivs, Scud. 1868. 
vetustus, Scud. 1868. 
Genus Epnemera, Hag. 1861; (nec Lin.). 
cellulosa, Hag. 1861=Dictyonewra. 
? mortua, Hag. 1861; incerte sedis. 
prisca, Germar, Hag. 1861; vide Sciaria. 
procera, Hag. 1861= Dictyonewra. 
Genus EvcErreon, Dohrn. 
Beckingii, Dohrn, 1868. 
Genus Epuemenires, Geinitz, Hag. 1865; in Leonhard & Geinitz, Jahrb. 
f. Mineral. &c., 1865, p. 385 [Brauer]. 
Genus HuPHEMERITES, Scud. 1868. 
affivis, Scud. 1868. 
gigas, Scud. 1868. 
Genus GEREPHEMERA, Scud. 1868. 
simplex, Scud. 1868. 
Genus HapLopHuesium, Dawson, 1867. 
Barnesii, Dawson, 1867. 
Genus HemertstiA, Scud. 1864. 
Brownsoni, Scud. 1864. 
Genus Homornetus, Dawson, 1867. 
fossilis, Dawson, 1867. 
Genus LirHentomum, Scud. 1868. 
Hartii, Scud. 1868. 
Genus Miamta, Scud. 1864. 
Brownsom, Seud. 1864. 
Genus Mormo.vucoipss, Hitehcock. 
antiquorum, Hitchcock. 
Genus PatErHEemeERA, Hitchcock= Mormotucoides. 
medieva, Hitchcock=M. antiquorwm. 
Genus PLaTEpHEMERA, Dawson, 1867. 
antiqua, Dawson, 1867. 
Genus Sctar1a, Germar. 
prisca, Germar ; cf. Ephemera, Hag.; incerte sedis. 
Genus XENONEURA, Dawson, 1867. 
antiquorum, Dawson, 1867. 
Ps 
