Genus name | Characters | Phylum | |
(a) | Pila | (i) Body segmented (ii) Mouth with radula | Mollusca |
(b) | Asterias | (i) Spiny skinned (ii) Water vascular system | Echinodermata |
(c) | Sycon | (i) Pore bearing (ii) Canal system | Porifera |
(d) | Periplaneta | (i) Jointed appendages (ii) Chitinous exoskeleton | Arthropoda |