The Canadian journal of industry, science and art . Fig. 195 —Trinuoleus con-centricus (Eaton). Vis. lQ4,.—Endocerag proMforme(Hall).. Fig. We.—Asaphtifi platycephahisf (Stokes). + Asaphvs megistos, from Cobourg, is a closely related species, but with the posteriorangled of the head-shield prolonged into horns. See ante, Paet IV. MINERALS AND GEOLOGY OP CANADA. 201

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Keywords: ., bookcentury1800, bookdecade1850, bookpublishertoron, bookyear1856