For the following stamps and stamp sheetlet scans, I owe thanks to seaslug stamp collector Louise Wilson, a native Scot currently living in Australia. She tells me stampville.com was a source for some of her stamps. Another helpful collector, Canadian Dr. Steve Morphy, tells me making a "wish list" and submitting it to dealers is a good way to collect particular stamps.

"The World Down Under" (1995) from Australia features a Blue Dorid nudibranch, one of my favorites.
In nature this nudibranch is usually found bearing a naturally purple color scheme, as shown here.

"International Year of the Ocean" from the Commonwealth of Dominica, featuring an aeolid nudibranch, bottom right.

This collection from Niue is all nudibranchs.

"Marine Life -- Series I" from Malaysia

Christmas Island-- there's a dorid nudibranch in the lower right stamp.
 

Christmas Island again-- an aeolid nudibranch on this September 1989 issue stamp and original-issue envelope.
 

Hong Kong, from 2003. Hoi Ha Wan Marine Park issue featuring corals, with a dorid nudibranch Hypselodoris festiva in the background.
 

Issued in May 2004, this "Marine Life of Palau" series shows two nudibranchs-- the last in the second row is Risbecia tryoni
and the third from the left in the last row is Chromodoris coi.
 

dorid nudibranch Hypselodoris bullocki
 

Glossodoris cruentus
 

When Louise Wilson sent the Mozambique series of nudibranch stamp scans I thought they looked familiar-- and with good reason.
All seven (two above, five below) of these stamps from Mozambique, issued as part of "The World of the Sea" series have
images that were pirated directly from my web site! Apparently the government of Mozambique does not respect copyright laws--
who says the pirates of Africa only exist off the coast of Somalia? Well, at least they look good. Click on the species link to compare for yourself.
 

Glossodoris hikuerensis


 

Hypselodoris bullocki this is not exactly the same nudibranch image as the one currently posted on my site. I replaced the image with another from the same roll of film.
 

Phyllidia coelestis
 

Phyllidia elegans
 

Chromodoris leopardus
 

"Noumea Aquarium" issue from New Caledonia, December 1964 featuring the species Cyerce elegans
 

This New Caledonia stamp from 1959 features the sea slug Glaucus atlanticus
 

from a Norfolk Island July 1993 issue, Glaucus atlanticus
 

Phyllidia ocellata from Norfolk Island, 1993

Bornella sp. from the same Norfolk Island issue, 1993
 

Glossodoris rubroannolata, Norfolk Island 1993
 

nudibranch Halgerda willeyi,  Norfolk Island 1993 issue stamp
 

nudibranch Chromodoris amoena, Norfolk Island 1993 issue stamp
 

This is from a series issued in Palau in 1987 celebrating the 25th Anniversary of the World Ecology Movement,
 the beginning of which was marked by the publication of the book "Silent Spring" by Rachel Carson. The book called attention to the
pressures of humanity on the environment, especially pollution. The stamp features a banded coral shrimp and
the nudibranch Chromodoris quadricolor.
 

The nudibranch Doridoxa ingolfiana is featured in the middle of this 1991 French Polynesia stamp, scanned from an original issue envelope
 

Cyerce sp. (top), Nembrotha sp. (middle), and Flabellina sp. (bottom) in three artist-conception reditions of nudibranchs on
these stamps from Somalia, issued in November 1999.