Species list

Recent Changes

The following includes only newly added species, name changes, newly posted articles, major updates to articles/pages (for example, changes to notes that provide substantial new information/corrections) and new photos. It does not include new photos added to "gallery" pages, minor alterations to data on established pages and correction of typos. Changes in those categories are too numerous to conveniently list.

The most recent changes are at the top and are grouped by month. The links are to the species pages while the comments indicate the nature of the change or give the title of the secondary page that was added or expanded.




Dermatobranchus rubidus--side (3rd photo)

Hydatina amplustre changed to Aplustrum amplustre

Cyerce bourbonica--front

Limenandra rosanae--young (2nd photo)

Costasiella kuroshimae--possible egg mass (new photo)

Godiva sp. #1--mating

Lamellaria sp. #2--violet (Prosobranch Addendum)

Aplysia juliana--side, mottled

Lamprohaminoea cymbalum--feeding

Rissoella cf. confusa--new photos (Lower Heterobranch Addendum)

Tenellia sp. #11--developing eggs

Samla bicolor--rhinophores

Costasiella formicaria--young

Goniobranchus albopunctatus--top (2nd photo)

Aplysia reticulata--swimming


Plocamopherus ceylonicus--branchia

Hexabranchus pulchellus--dark (3rd photo)

Diniatys dubius--feeding

Caloria indica--feeding (bottom 3 photos)

Tergipes(?) sp. #1 changed to Unidentified Facelinid sp. #9

Dermatobranchus rubidus--front & side

Philinopsis speciosa--underside (2nd photo)

Cerberilla sp. #1--about to feed?

Elysia sp. #4--folded chimneys

Baeolidia moebii--with blue (new photo) & orange variant

Siphopteron quadrispinosum--egg mass (2nd & 3rd photos)

Phyllidia polkadotsa--side (2nd photo)

Aplysia argus--underside (3rd photo)

Hypselodoris infucata--side (2nd photo)

Ardeadoris tomsmithi--rhinophores & egg mass (2nd photo)


Costasiella formicaria--with egg mass (new 2nd photo)

Pleurobranchus varians--side (2nd photo)

Lamellaria sp. #5--front  (prosobranch addendum)

Cratena sp. #1--side (2nd photo)

Thorunna kahuna--white-lined (new photo)

Eubranchus sp. #1--side

Umbraculum sp. #3--buried & underside

Phyllidiella cf. lizae--in field

Phyllidiella sp. #1 changed to Phyllidiella cf. lizae

Discodoris lilacina--underside (3rd & 4th photos)

Tubulophilinopsis pilsbryi--small spots

Lamellaria sp. #7--large, front (new photo) & large, side (prosobranch addendum)

Aliculastrum debilis--egg mass (2nd & 3rd photos)

Notarchus indicus--front

Platydoris formosa--trailing

Tenellia sp. #5--regenerating (2nd photo)

Aplysia elongata--mating (new photos)

Ardeadoris tomsmithi--on food sponge (4th & 5th photos)

Goniobranchus albopunctatus--young (new photo)

Hypselodoris infucata--young (new photo)

Thuridilla neona--side (new photo)

Diniatys dubius--side & mating (2nd & 3rd photos)

Tenellia sp. #25--on hydroid (3rd photo)


Anteaeolidiella cacaotica--underside & side (new photo)

Goniobranchus albopustulosus--side

Chelidonura hirundinina--sensory bristles

Tenellia sp. #25--egg masses (4th photo)

Pteraeolidia semperi--regenerating (3rd photo)

Ercolania sp. #7--orange front

Tambja morosa--survivors (2nd photo)

Phyllodesmium sp. #2--side

Abronica sp. #4--side (new photo)

Pleurobranchus forskalii--side & front

Umbraculum sp. #3--front (2nd & 3rd photos)

Heliacus areola--on zoanthids (Lower Heterobranch Addendum)

Stylocheilus striatus--front

Costasiella sp. #3--head pattern (new 3rd photo), side (new photos) & young (3rd photo)

Costasiella kuroshimae--side (new 2nd photo), young (new photo), with eggs (2nd photo) & pale (2nd photo)


Dendrodoris nigra--side

Elysia sp. #10--papillate (2nd photo)

Tenellia pinnifera--new photo

Aplysia juliana--"front & pale yellow"

Plakobranchus ocellatus--with egg mass

Unidentified Haminoeid #2--dark "tail"

Gymnodoris sp. #6--side (2nd photo)

Tenellia sp. #1--large (new photo) & regenerating

Tenellia sp. #11--feeding

Polybranchia jensenae--young (3rd photo)

Polybranchia cf. jannae--new species

Costasiella sp. #2--young

Goniodoris joubini--front & side (2nd photo)

Aplysia argus--underside & interior (new photo)

Costasiella formicaria--with egg mass (new 3rd photo) & dark central cerata (new photo)

Tenellia pinnifera--rhinophores

Baeolidia moebii--feeding, side (new photo)

Costasiella sp. #1--front & less iridescence

Oxynoe jordani--bi-colored "tail," regenerating, young (4th photo) & side (2nd photo)

Plocamopherus maculatus--side (3rd photo)

Hexabranchus pulchellus--predation

Okenia pellucida--new photo, front & with egg masses

Costasiella sp. #3--head pattern, white granules, young, side, pair, blue patches & less blue

Costasiella kuroshimae--"with C. sp. #2 & eggs," side, young & pale (2nd photo)

Costasiella sp. #3 split from Costasiella kuroshimae--new species


Melibe engeli--on Halimeda (new 2nd photo)

Melibe sp. #1--resting

Lobiger viridis--front, more lines & side (2nd photo)

Oxynoe viridis--changed to Oxynoe jordani (all photos added)

Aplysia elongata--heavily spotted

Unidentified Haminoeid #5--2nd animal & "tail"

Costasiella formicaria--groups, in field; notum pigment (2nd photo) & with egg mass (2nd photo)

Halgerda terramtuentis--underside (2nd photo)

Ardeadoris tomsmithi--mating & egg mass

Verconia varians--side (new photo)

Cerberilla sp. #1--side (new photo), white flecks & yellow bars

Cerberilla sp. #1 split from Cerberilla albopunctata--new species


Cerberilla albopunctata--2nd animal

Unidentified Juliid #2--top (2nd photo)

Tenellia sp. #11--front

Hypselodoris imperialis--rhinophore & trailing (4th photo)

Notarchus indicus--prominent papillae

Lamprohaminoea cf. ovalis--no purple (2nd photo)

Goniodoridella sp. #1--ridges

Costasiella kuroshimae--pale

Philinopsis speciosa--attacking prey

Lamprohaminoea cf. ovalis--green, little purple

Paradoris sp. #1--young



Melibe megaceras--egg mass (2nd & 3rd photos)

Costasiella sp. #2--burying

Cliopsis krohni--dorsal view

Cavolinia uncinata--new photo

Cavolinia globulosa--new photo

Corolla ovata--new species

Gleba cordata--new species

Unidentified Discodorid #19--new species

Costasiella formicaria--dark (new photo), light, pair, feeding, side, underside, mating & with egg mass

Melibe megaceras--regenerating, front & side (2nd & 3rd photo)

Costasiella sp. #2--side (new photo)

Baeolidia scottjohnsoni--rhinohores

Favorinus japonicus--feeding (5th photo)

Elysia sp. #6--unrolled rhinophores & rust-brown

Onchidoris cf. depressa changed to Knoutsodonta cf. maugeansis

Tambja morosa--young (2nd photo)

Phyllidiopsis sphingis--flattened posture

Berthella martensi--head detail

Ceratosoma sp. #2--complex lines

Unidentified Pleurobranchid #3--new photo, acid glands & slightly contracted (1st photo)

Thuridilla carlsoni--light

Aplysia elongata--siphon

Anteaeolidiella cacaotica--side (1st photo)

Notobryon wardi--on algae

Aplysia oculifera--interior

Polycera sp. #1--egg mass (3rd photo)

Caloria sp. #3--side (2nd photo)

Stiliger sp. #10--intact cerata (2nd photo)

Doriopsilla sp. #9--rhinophore detail


Doris pecten--rhinophores

Flabellina exoptata--on egg mass (1st photo)

Goniodoridella sp. #1--side (1st & 2nd photo)

Siphopteron quadrispinosum--mating (new photos)

Costasiella kuroshimae--cerata detail

Tambja morosa--mating (new photos)

Miamira sinuata--feeding

Tenellia sp. #22--side and white spotted (2nd photo)

Dendrodoris elongata--stretched out

Aplysia argus--with shrimp

Elysia sp. #7--side (3rd photo)

Okenia pellucida--side (new photo)

Cleotrivia globosa--side (prosobranch addendum)

Ardeadoris scottjohnsoni--rhinophores

Goniodoridella sp. #1--side

Phanerophthalmus anettae--pale & underside (2nd photo)

Dolabrifera dolabrifera--head & "mating & egg mass" (3rd photo)

Tenellia pinnifera--on hydroid

Tenellia sp. #2--pale

Cyerce elegans--side

Pteraeolidia semperi--rhinophores

Atys kuhnsi--transitional


Goniobranchus sp. #1--branchia (2nd photo)

Thorunna daniellae--rhinophores

Costasiella sp. #2--rhinophore swellings & on alga (2nd photo)

Tenellia sp. #11--with egg mass (2nd photo)

Baeolidia salaamica--pale

Hypselodoris infucata--feeding (3rd photo)

Thorunna kahuna--side

Stylocheilus striatus--with shrimp

Bulbaeolidia alba-head, side

Goniodoridella sp. #3--tubercles & top

velutinid addendum changed to prosobranch addendum and expanded

Facelina sp. #3--pale

Phyllodesmium poindimiei--laying eggs

Pleurobranchus(?) sp. #1--new species (split from Pleurobranchus mamillatus)

Aliculastrum debilis--escape behavior

Pleurobranchus mamillatus--new photos

Tenellia sp. #11--side

Aplysia argus--front & interior (2nd photo)

Placida barackobamai--side

Dendrodoris elongata--front

Chromodoris sp. #2--front & side (2nd photo)

Cyerce elegans--front

Tubulophilinopsis pilsbryi--front

Flabellina sp. #2--laying eggs (3rd photo)

Phyllidia varicosa--young (3rd photo)


Berthella sp. #1--small spot (2nd photo)

Tenellia melanobrachia--head & feeding (2nd photo)

Spinoaglaja orientalis--young

Caloria sp. #3--regeneration error (2nd photo)

Elysia pusilla--on Halimeda (new photo)

Babakina indopacifica--side & rhinophores

Aplysia sp. #1 changed to Aplysia reticulata

Phyllidia polkadotsa--side

Bulbaeolidia paulae--with eggs

Lamellaria sp. #7--2nd animal & 2nd animal, front (prosobranch addendum)

Verconia sp. #4--granules?

Favorinus sp. #1--violet spots

Ceratosoma tenue--feeding (2nd photo)

Caloria sp. #3--feeding

Elysia obtusa--more white

Costasiella sp. #1--with brown (2nd photo)

Philinopsis speciosa--sensory bristles

Goniobranchus albopunctatus--front

Unidentified Facelinid sp. #8--new species

Phyllidiopsis loricata--more spots

Tenellia sp. #27--new species

Asteronotus cespitosus--gray

Sacoproteus cf. smaragdinus--young

Berthella stellata changed to Berthella pellucida

Hypselodoris infucata--with egg mass

Phyllodesmium sp. #1--feeding (4th & 5th photos)


Ardeadoris angustolutea--with egg mass

Lamprohaminoea sp. #1--violet (new photo)

"group" tables revised and updated

Elysia sp. #7--side (2nd photo)

sp. #1 changed to Phycophila euchlora

Cerberilla sp. #1 changed to Cerberilla cf. albopunctata; photos rearranged

Asteronotus cespitosus--side & rhinophores

Goniodoridella sp. #3--new species
Species list