ectothermic vertebrates (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812 Count: [c] 3c;2o;4f 1 Class Actinopterygii Woodward, 1891 - ray-finned fishes Count: - 2 Class Amphibia Gray, 1825 Count: - 3 Class Reptilia Linnaeus, 1758 - reptiles Count: [o] 2o;4f