Page:The Osteology of the Reptiles.pdf/204

186 names astragalus and calcaneum and abandon the names tibiale, fibulare, and intermedium for the reptilian tarsus. Of the



centralia the most probable theory is that the fourth of the amphibian tarsus has united with the astragalus, the third with the fourth tarsale. The second is known to fuse with the astragalus in the