|
Protochordates:-
Balanoglossus: Tornaria larva Ascidia: Retrogressive metamorphosis |
Amphioxus
|
Agnatha:-
Petromyzon |
Ammocoete larva
|
Gnathostomata
Scoliodon
|
Economic importance of Fishes
|
Amphibia
Reptilia
|
Poisonous & Non-poisonous snakes
Poison apparatus
|
Aves
Mammals
|
Hair and its development