. Revision of the Amphibia and Pisces of the Permian of North America. 1. Jiryops inciiacephalus. Xo. 4673 Am. Mus. X X- Anterior iiDilinn uf nuse, showing sculiitiirt 2. Jiryops (?). Xo. 4310 Am. ^lus. X %. Upper surface of sl^nll of a young indiviflual. 3. Jiryops iiiegarep/ialiis. Xo. Am. JIus. X X. Anteiior \-ie\v of pelvis. 4. Jiiyops iiicgarrp/taliis. Xo. 4,SS2 Am. JIus. X %. Lateral view of pehis. CASE—AMPHIBIA AND PISCES.

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Keywords: ., bookcentury1900, bookdecade1910, bookidc, booksubjectpaleontology