. Comparative anatomy and physiology. Chap. IX.] SKELETON OF FISHES. 323 »Sk- inferior to the notochord, or the modified urostyle which has taken its place. The unpaired dorsal fins of Fishes are connected with the vertebral column by means of spines, which are placed be- tween the neu- ral spines of the vertebrae, and are connected with the dermal spines or fin rays which sup- port and make up the greater part of the fins themselves. In many fishes there is very constantly developed a haemal as well as a neural arch of bone in connec- tion with the cen- trum, and these, like the superior, are
. Comparative anatomy and physiology. Chap. IX.] SKELETON OF FISHES. 323 »Sk- inferior to the notochord, or the modified urostyle which has taken its place. The unpaired dorsal fins of Fishes are connected with the vertebral column by means of spines, which are placed be- tween the neu- ral spines of the vertebrae, and are connected with the dermal spines or fin rays which sup- port and make up the greater part of the fins themselves. In many fishes there is very constantly developed a haemal as well as a neural arch of bone in connec- tion with the cen- trum, and these, like the superior, are produced into a spine; in the hinder re- gion of the body interspinous bones are de- veloped between these so-called haemaphyphyses, and they serve to carry the fin rays of the anal fin. Articulated to the atlas is the skull, which, in the first place, is the box or covering for the brain; this. 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 Bell, F. J. (Francis Jeffrey), 1855-1924. London, Cassell
Size: 1186px × 2107px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondo, bookyear1885
