. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. FIG. 43A.—TAIL OF n Fir;. 43fi.—CAUDAL END OF VERTEBRAL COLUMN OF SALMON. (From Boas's Zoology.) h, centrum ; h', urostyle ; n, haemal arch ; n', hypural bone ; o", neural arch ; t, neural spine. in which the heterocercal character is only visible internally, and the tail is described as homocercal (cf. Figs. 43, A and !>}. The posterior end of the vertebral column is then frequently represented by a rod-like urostyJc, and in Teleosts one or more wedge-shaped hypnral bones (enlarged hannal arches) gen

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. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. FIG. 43A.—TAIL OF n Fir;. 43fi.—CAUDAL END OF VERTEBRAL COLUMN OF SALMON. (From Boas's Zoology.) h, centrum ; h', urostyle ; n, haemal arch ; n', hypural bone ; o", neural arch ; t, neural spine. in which the heterocercal character is only visible internally, and the tail is described as homocercal (cf. Figs. 43, A and !>}. The posterior end of the vertebral column is then frequently represented by a rod-like urostyJc, and in Teleosts one or more wedge-shaped hypnral bones (enlarged hannal arches) generally occur directly -beneath 1 The diphycercal character of the tail in Dipnoi and curtain Teleostuini is probably not primitive (protocercal), but has been acquired Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomycomparative