NO. 2177. FOSSIL FISHES IN NATIONAL MUSEUM— EASTMAN. 301 



Palaeophichthys parvulus Eastman, p. 272. 



2. A specimen with the structural details impaired by oxidation, X|. 

 Pennsylvanian; Mazon Creek, Illinois. 



Elonichthys hypsilepis Hay, p. 274. 



3. Skeleton in nodule showing fin structure, natural size. 

 Pennsylvanian; Mazon Creek, Illinois. 



Cladodus aculeatus, new species, p. 255. 



4. A tooth, Xf. 



Mississippian (Caney shale); Antlers Quadrangle, Oklahoma. 



Arthrodiran antero-ventro-lateral plate, p. 255. 



Figs. 5, 6. Two plates preserved in concretions, X|. 

 Mississippian (Caney shale); Oklahoma. 



Series of natui-ally associated Lepidotid scales, p. 279. 



Fig. 7. Specimen, Xf. 



Triassic, Kanab Canyon, Arizona. 



Plate 11. 



Ceraspis carinata Schliiter, p. 242. 



Fig. 1. Dorsomedian plate, side-view, natural size. 



Middle Devonian; Eifel, Germany. Original in Musemn of Comparative 

 Zoology, Cambridge, Mass. 



Ischyrhiza mira Leidy, p. 298. 

 2. Tooth, natural size. Cretaceous; near Dvunas, Mississippe. 



Coelacanthus elegans NewbeiTy, p. 271. 



Figs. 3, 4. Two distorted examples, Xf. 



Pennsylvanian; Mazon Creek, Illinois. 



Plate 12. 



Catopterus gracilis Redfield, p. 280. 



Fig. 1. Part of skeleton, including head with scales in place, X?. 



2. A crushed example, Xf. 

 Triassic; Durham, Connecticut. 



Semionotus microjyterus Newberry, p. 278. 



3. Nearly complete specimen, Xf. 

 Triassic; Guilford, Connecticut. 



Lepidotus walcotti, new species, p. 283. 



4. Patch of scale impressions, Xf. 



Triassic portion of Shinarump group; Kanab Valley section, Utah. 



Astraspis desiderata Walcott, p. 238. 



Figs. 5, 6. Natural impression of body shield and plaster cast from same, Xf. 



Ordovician (Harding sandstone of Black River); Canon City, Colorado, 



