On the Structure and Affinities of Palaeodiscus and Agelacrinus . Jiv2zer yVeitr (kxier ^&»K Text Pigs. 4 and 5.—Portious of Half Pyramid of Falaodiscus ferox. Fig. 4,internal view, , processus tabialis; , linecB eminentes pyramidales;c, cut away portion of pyramid. Fig. 5, external view ; , concaveouter surface ; v., ridges on blo. 1.—Oust of Prt/*flf//.vc»» in the Oxford Musciitn ; .4m = Anus.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectproceed, bookyear1904