Worms, nudis, fish, crabs

All of these shots taken in Bali, i don't have an invert book anymore..

Basically looking for full latin names and common names as well but latin is more important

First, flatworm

A nudi

Some sort of worm like parasites on an anthias

Another nudi

Mating Cardinalfish, perhaps apogonides or luteus?

Some sort of crab

And last.. a moray..

Thanks for your help..

Not a single polychaete?

1 - Opisthobranch, undescribed Armina species http://www.seaslugforum.net/showall.cfm?base=armisp4

2 - Hypselodoris infucata http://www.seaslugforum.net/showall.cfm?base=hypsinfu

3 - not enough detail in the photo to be sure, possibly parasitic copepods if the "worms" appear to have 2 tails

4 - Mexichromis multituberculata http://www.seaslugforum.net/showall.cfm?base=meximult

6 - family Portunidae, maybe Thalamita (there aren't as many books on crustaceans as on sea slugs)

5 - Looks more like luteus to me.

7 - No Idea

The cardinalfish is difficult but looks like A. moluccensis to me. Have a look at Fishbase for this specie.

With the moray, have you considered Gymnothorax zoniplectis? It is the nearest I can get. The number of light blotches do seem to vary quite a bit although I must say this one has very few. May be worth researching a bit further

thanks Jim, the moluccensis is also a good possibility. But the photo i have of it in my book shows some vertical lines, i will look at fishbase.

and they moray, again will look at fishbase for the one you suggest, don't like the photo of it in my ref. book

Thanks Leslie and William too!