Hey All

I need some help. I am doing a children's classroom activity naming the body parts on a fish. I would like to describe a powder blue tang.

I am mostly confused about the lower fins. The upper fins are the dorsal fins (I know this much) but is the lower fin the anal fin or the pelvic fin. I ask this since is seems as if the tangs only have one lower fin.

I don't keep fish in my aquarium only corals and inverts so I never have taken the time to study fish and their body parts.

Could someone help me identify the body parts of a tang.

Thanks

Christopher