Please help ID a green nudibranch 6-8cm long seen in Gato island, Malapascua
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ocdiver1
Contributor
it looks like a ceratosoma, either tenue or gracillimum
Kilili
Contributor
ocdiver1 is on target.
You can check against the different photos on nudipixel.com for these species.They exhibit a great deal of colour variance, and studying body shape can be more useful.
By the way, the Reef Creature ID book doesn't have much focus on nudibranchs, and you're much better off with a nudi-only book.
You can check against the different photos on nudipixel.com for these species.They exhibit a great deal of colour variance, and studying body shape can be more useful.
By the way, the Reef Creature ID book doesn't have much focus on nudibranchs, and you're much better off with a nudi-only book.
OP
yuhtnav
Registered
DevonDiver
N/A
Go for nudi-pixel... it's free, searchable with inquiry, has taxonomies in menu and has multiple pictures per species - which helps identification when there are variances in color etc..
OP
yuhtnav
Registered
Ok, so I checked my Reef Creature book again for Ceratosoma Gracillimum and found them.
Following is what's in the book for Ceratosoma Gracillimum:
"Slender T-bar nudibranch
Ceratosoma Gracillimum
Dorid Nudibranch
Chromodorididae
Size: to 12 cm (4 3/4 in.)
ID: Orange to red and red-brown with mottling; pair of flat lateral body lobes adjacent to gill, no sharp mantle edge between head and wing-like lobes; tall appendage behind gill. West Pacific to Solomon Islands and Australia, also Japan."
The size sounds right and the shapes of the bodies of those in photos in the book look similar, but the color variance doesn't include green. That's why I'd decided the one in my photo hadn't been CG.
Kupu, could you please tell us what it says in the Nudibranch Encyclopedia about CG color variance?
Nudipixel doesn't say anything about color variance and I've gone thru 186 photos for CG there, the shade that was closest to green I found was in the pic below. Others were varying from red to orange to light yellowish as my book says.
Ceratosoma gracillimum from Bali, Indonesia » Nudi Pixel
Following is what's in the book for Ceratosoma Gracillimum:
"Slender T-bar nudibranch
Ceratosoma Gracillimum
Dorid Nudibranch
Chromodorididae
Size: to 12 cm (4 3/4 in.)
ID: Orange to red and red-brown with mottling; pair of flat lateral body lobes adjacent to gill, no sharp mantle edge between head and wing-like lobes; tall appendage behind gill. West Pacific to Solomon Islands and Australia, also Japan."
The size sounds right and the shapes of the bodies of those in photos in the book look similar, but the color variance doesn't include green. That's why I'd decided the one in my photo hadn't been CG.
Kupu, could you please tell us what it says in the Nudibranch Encyclopedia about CG color variance?
Nudipixel doesn't say anything about color variance and I've gone thru 186 photos for CG there, the shade that was closest to green I found was in the pic below. Others were varying from red to orange to light yellowish as my book says.
Ceratosoma gracillimum from Bali, Indonesia » Nudi Pixel
Last edited:
Kilili
Contributor
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