Need help - Philippines Nudis

I've done all I can with identifying my nudibranchs from a trip to Anilao and a shorter time in Puerta Gallera. Here are the ones I have left. I'll have another post with fish and a third with crustaceans. Thanks for any help anyone can give me!

OK, this one is not a nudi but some sort of cowrie, I think:

I have Hypselodoris Infucata or Hyps sp. 7 from the REEF book

And the remaining 4 I have no ideas:

Thanks!

1. Impossible to tell from this angle, but possibly Pleurobranchus forskalii, similar to https://www.flickr.com/photos/8723238@N07/4722686790/in/photolist-awMFsx-fYaWYz-ihFDnQ-ekFViH-89p5od-BwMM39-8ck1fj-dr4Yax-dXDDLp-jX3ren-zheZt4-G5dCdh-Q6h4Qk

2. I don't have the REEF book, but this is likely Hypselodoris sp. 7 in Nudibranch & Sea Slug Identification - Indo-Pacific

3. Plakobranchus sp., similar to https://www.flickr.com/photos/8723238@N07/23581272379/in/photolist-AcXbjm-dr59L3-awMKhM-jX5ZQ1-ekMF6q-CjJFmN-fYaA1f-3PsB41-BwMQdY-ihFugq-d6AVom-jX4Qir-dr5abL-awQrwA-ekFVtP-BVNbHH-ihFFwj-jX3NUD-dr59VE-PGxgSd-QdbVbu-NZ6nXm

4. Phyllodesmium pinnatum, similar to https://www.flickr.com/photos/8723238@N07/8755441767/in/photolist-BwMov5-ekFVNx-ekFVQg-jX7tQN-ihFAXE

5. Phyllodesmium pinnatum

6. Eubranchus mandapamensis, similar to https://www.flickr.com/photos/8723238@N07/9824441913/in/photolist-C39aLs-dr2d9s-ekMpVy-fY9Qix-ihCKru-jX5iAn-avjFam-d6xLoG-awQeuL-zdJgeS-GRsfu7-Q8LCZ3

Thanks! What I call the REEF book is "Nudibranch & Sea Slug Identification - Indo-Pacific" (I don't have it with me right now).