Beginners' zoology . Fig. •Skeleton of EuropeanTortoise. C, rib plates; M, marginal plates; B, plastron;H, humerus bone; R, radius; U, ulna;Fe, Fig. 268. —Three-cham-bered Heart of a Rep-tile (tortoise). «, veins; b,f, right and left auri-cles ; eg, ventricle; d, arteries tolungs; , veins from lungs; i,n,two branches of aorta. Compare with Fig. 2t59 and coloured Show that the shellof a turtle is not homologous withthe shells of mollusks. Does theturtle have shoulder blades andcollarbones. Hipbones? Thighbones? Shin bone (fibia) and splintbone (fibula)? (Fig. 267.) Do the p
Beginners' zoology . Fig. •Skeleton of EuropeanTortoise. C, rib plates; M, marginal plates; B, plastron;H, humerus bone; R, radius; U, ulna;Fe, Fig. 268. —Three-cham-bered Heart of a Rep-tile (tortoise). «, veins; b,f, right and left auri-cles ; eg, ventricle; d, arteries tolungs; , veins from lungs; i,n,two branches of aorta. Compare with Fig. 2t59 and coloured Show that the shellof a turtle is not homologous withthe shells of mollusks. Does theturtle have shoulder blades andcollarbones. Hipbones? Thighbones? Shin bone (fibia) and splintbone (fibula)? (Fig. 267.) Do the plates formed by the ribsextend to the edge of the cara-pace ? See Fig. 26j. About howmany bony plates form the cara-pace ? The plastron ? Do thehorny plates outside correspondto the bony plates of the shell ? REPTILIA 143
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1921
