I owe a huge debt of gratitude to Dave Behrens and Terry Gosliner for their incredibly helpful assistance in identifying my nudibranch photos. For the vast majority of my shots, they turned my "I think it could possibly be..." into a positive i.d.

Philippines (Page 1)

Aegires citrinus Aegires citrinus	Aegires villosus Aegires villosus	Aegires villosus Aegires villosus
Armina cf. semperi Armina cf. semperi	Armina sp. Armina sp.	Asteronotus mimeticus Asteronotus mimeticus
Atagema sp. Atagema sp.	Baeolidia sp. Baeolidia sp.	Cadlinella ornatissima Cadlinella ornatissima
Cadlinella ornatissima Cadlinella ornatissima	Carminodoris flammea Carminodoris flammea	Ceratophyllidia sp. Ceratophyllidia sp.
Ceratosoma alleni Ceratosoma alleni	Ceratosoma gracillimum Ceratosoma gracillimum	Ceratosoma gracillimum Ceratosoma gracillimum
Ceratosoma sinuatum Ceratosoma sinuatum	Ceratosoma sinuatum Ceratosoma sinuatum	Ceratosoma tenue Ceratosoma tenue
Ceratosoma trilobatum Ceratosoma trilobatum	Ceratosoma trilobatum Ceratosoma trilobatum	Cerberilla affinis Cerberilla affinis
Chromodoris albopunctata Chromodoris albopunctata	Chromodoris annae Chromodoris annae	Chromodoris annae Chromodoris annae
Chromodoris aspersa Chromodoris aspersa	Chromodoris aureopurpurea Chromodoris aureopurpurea	Chromodoris coi Chromodoris coi
Chromodoris colemani Chromodoris colemani	Chromodoris collingwoodi Chromodoris collingwoodi	Chromodoris dianae Chromodoris dianae
Chromodoris dianae Chromodoris dianae	Chromodoris elisabethina Chromodoris elisabethina	Chromodoris fidelis Chromodoris fidelis
Chromodoris geometrica Chromodoris geometrica	Chromodoris hintuanensis Chromodoris hintuanensis	Chromodoris joshi Chromodoris joshi
Chromodoris leopardus Chromodoris leopardus	Chromodoris lochi Chromodoris lochi	Chromodoris magnifica Chromodoris magnifica
Chromodoris magnifica Chromodoris magnifica	Chromodoris magnifica Chromodoris magnifica	Chromodoris preciosa Chromodoris preciosa
Chromodoris cf. reticulata Chromodoris cf. reticulata	Chromodoris cf. reticulata (juvenile) Chromodoris cf. reticulata	Chromodoris cf. reticulata Chromodoris cf. reticulata
Chromodoris rubrocornuta Chromodoris rubrocornuta	Chromodoris sp. Chromodoris sp.	Chromodoris striatella Chromodoris striatella
Chromodoris cf. strigata Chromodoris cf. strigata	Chromodoris verrieri Chromodoris verrieri	Chromodoris willani Chromodoris willani
Cratena simba Cratena simba	Cuthona yamasui Cuthona yamasui	Dendrodoris denisoni Dendrodoris denisoni
Dendrodoris denisoni (juvenile) Dendrodoris denisoni	Dendrodoris fumata Dendrodoris fumata	Dendrodoris fumata Dendrodoris fumata
Dendrodoris guttata Dendrodoris guttata	Dendrodoris nigra Dendrodoris nigra	Dendronotus regius Dendronotus regius
Dendronotus regius Dendronotus regius	Dermatobranchus caeruleomaculatus Dermatobranchus caeruleomaculatus	Dermatobranchus rubidus Dermatobranchus rubidus
Dermatobranchus semilunus Dermatobranchus semilunus	Discodoris boholensis Discodoris boholensis	Discodoris cebuensis Discodoris cebuensis
Discodoris lilacina Discodoris lilacina	Discodoris lilacina Discodoris lilacina	Discodoris lilacina Discodoris lilacina
Discodoris lilacina Discodoris lilacina	Doto sp. Doto sp.	Durvilledoris pusilla Durvilledoris pusilla
Eubranchus mandapamensis Eubranchus mandapamensis	Eubranchus sp. Eubranchus sp.	Facelinid sp. Facelinid sp.
Favorinus japonicus Favorinus japonicus	Favorinus mirabilis Favorinus mirabilis	Favorinus tsuruganus Favorinus tsuruganus
Flabellina bicolor Flabellina bicolor	Flabellina exoptata Flabellina exoptata	Flabellina rubrolineata Flabellina rubrolineata
Glossodoris atromarginata Glossodoris atromarginata	Glossodoris averni Glossodoris averni	Glossodoris cincta Glossodoris cincta
Glossodoris pallida Glossodoris pallida	Glossodoris pallida Glossodoris pallida	Glossodoris rufomarginata Glossodoris rufomarginata
Glossodoris sp. Glossodoris sp.	Goniodoris felis Goniodoris felis	Gymnodoris aurita Gymnodoris aurita
Gymnodoris citrina Gymnodoris citrina	Gymnodoris rubropapulosa Gymnodoris rubropapulosa	Halgerda batangas Halgerda batangas
Halgerda batangas Halgerda batangas	Halgerda tesselata Halgerda tesselata	Halgerda willeyi Halgerda willeyi
Halgerda willeyi Halgerda willeyi	Hallaxa hileenae Hallaxa hileenae	Spanish Dancer Hexabranchus sanguineus
Spanish Dancer (juvenile) Hexabranchus sanguineus	Chromodoris cf. reticulata Chromodoris cf. reticulata	Chromodoris cf. reticulata (juvenile) Chromodoris cf. reticulata