Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Homalonotus armatus, Burmeister. Lower Devonian ; Daun, in the Eifel. Obs. The two rows of spines down the body give an appearance of more distinct trilo- bation than really occurs in this or most other species of the genus. Fig. 61T. Pleurodiciyum problemaiicum, Goldfuss. Lower Devonian; of Plymouth and Tor- quay ; Looe; Forez, &c.; also in Germany at Dietz, Nassau, &c.' Obs. Attached to a worm-like body (Serpul

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Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Homalonotus armatus, Burmeister. Lower Devonian ; Daun, in the Eifel. Obs. The two rows of spines down the body give an appearance of more distinct trilo- bation than really occurs in this or most other species of the genus. Fig. 61T. Pleurodiciyum problemaiicum, Goldfuss. Lower Devonian; of Plymouth and Tor- quay ; Looe; Forez, &c.; also in Germany at Dietz, Nassau, &c.' Obs. Attached to a worm-like body (Serpula). The specimen is a cast iu sandstone, the thin expanded baso of the coral being re- moved, and exposing the large polygonal cells; the walls of these cells are perforated, and the casts of these perforations produce the chain-like rows of dots between the cells. * Murchison's Siluria, p. 368.

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