. Catalogue of seals and whales in the ... Museum. 83 formed of the lateral process of the atlas united to the lower lateral processes of some of the other cervical vertebra;. The upper lateral processes seem to be scarcely developed, as the mass slielves down above towards the lower edge, and has on its upper part a series of jjerfoi'atious on each side, showing the axes of the nerves and vessels between the united vertebra;. The cervical vertebrte of a Balceiici in the British Museum, that was dredged up at Lyme Eegis, are united together not only by the body of the vertelira^, Init by the n
. Catalogue of seals and whales in the ... Museum. 83 formed of the lateral process of the atlas united to the lower lateral processes of some of the other cervical vertebra;. The upper lateral processes seem to be scarcely developed, as the mass slielves down above towards the lower edge, and has on its upper part a series of jjerfoi'atious on each side, showing the axes of the nerves and vessels between the united vertebra;. The cervical vertebrte of a Balceiici in the British Museum, that was dredged up at Lyme Eegis, are united together not only by the body of the vertelira^, Init by the neural arches, which form a large vaulted arch, and ])y the lateral processes. Fig-. .3. ^.. â ;J//. zf^A /^j f'er\ ical vertebra; of Bal<T)ia Lvme Rejris. The lateral processes of the atlas are large; they arise from the exterior side of the articuhu* canity, the edge of the upper side being on a level with the top of the concavity, and the blunt end is rather curved up; the underside gradually shelves from the blunt outer end to the lower margin of the articular ca^-ity. The upper lateral processes of the second, third, fourth, fiftli, sixth, and seventh ccrvicals are all united together at the ends, the process of the second vertebra being the thickest, largest, and bent; it is united to the hinder surface of the end of the lateral process of the atlas by a thick osseous band. The rqiper lateral processes of the third, fourth, fifth, sixth, and seventh are thinner and smaller, diminishing in size as they proceed backwards; the process of the third is directed backwards to meet the end of the foiirth, whicli, like those of tlie fifth, sixth, and seventh, is directed rather forwards towards the head. The lower lateral process of the second vertebra is very large, thick, confluent â «'ith tlie lower ])art of the lateral process of the first ver- tebra or atlas, but produced far beyond it, and thickened below and at the end, whieh is eonsidcralily dilated. The lower proce
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherlondon, bookyear186
