Animals |
Morphological feature |
(1) Cockroach, Locust, Taenia |
Metameric segmentation |
(2) Liver fluke, Sea anemone, Sea cucumber |
Bilateral symmetry |
(3) Centipede, Prawn, Sea urchin |
Jointed appendages |
(4) Scorpion, Spider, Cockroach |
Ventral solid central nervous system |