PALAEOZOIC AIR-BREATHING ANIMALS. 81 



Family — Hemeristina. 



Genus — Lithentomum. 



12. Litheiitii)nii))i Hartii, Scudder. 

 [Devonian Insects of New Brunswick, 1865; Can. Nat. (2) III., 2i 6.] 

 Devonian, Fern Ledges, St. John, N.B., collected by C. F. Hartt. 



Family — Horn othetidœ. 



Genus — Homothetus. 



13. JliiiiKi/hctiisfoftsib's, Beuilder. 

 [Devonian Insects, N. Brunswick, 1865; Can. Nat., N. S., IL, p. 235 ; Acalian Geology, p. 524.] 

 Devonian, Fern Ledges, St. .rdlm, N. B., col. J. B. ILjgan. 



Family — Xenoneurida:. 



Genus — Xenoneuka. 



14. Xenoneura antiquorum, Scudder. 

 [Devonian Insects of New Brunswick, 1865 ; Canadian Naturalist, III., 206; Acadian Geoloiry, p. 526.] 



15. Geroneurn Wilsoni, Matthew. 

 [Trans. Royal Society of Canada, IV., 1888, p. 57.] 

 Devonian, Little River Group, Lancaster, N. B., col. W. J. Wilson. 



Family — Profophasmida. 

 Genus — Haplophlebium. 



16. Hiiphiphlehium Barnesii, Scudder. 



[Mem. Bost. Socy , Nat. Hist, Xi., 151 ; Acadian Geology, 386 ; Geol. Magazine, IV., p. 386; Canad. Nat., 2d serie.s, 

 III., 262.] 



Synonym, Dictyoneura liajilophlehium, Goldenburg, Fauna Sarep. Foss. 



Coal Formation, Glace Bay, Cape Breton, col. J. Barnes. 



Family — 



Genus — Gerephemera. 



17. Gerephemera simplex, Scudder. 

 [Scudder, Devonian Insects of New Brunswick ; Gejl. Maga., V-, 174.] 

 Devonian, Little River Group, St. John, N. B., col. J. W. Hartt. 



(INCERT.E SeDIS.) 



18. Di/scritus vetusfus, Scudder. 

 [Devonian Ins., N. Brunswick, 1865; Geol. Mag., V., 172.] 

 Devonian, Little River Group, St. John, N. B., col. C. F. Hartt. 



Sec. IV., 1894. 11. 



