Madrella amphora
Image courtesy of Jim Anderson
Samarai, China Straits, Milne Bay Province, Papua New Guinea
Approx size :25 mm
Depth:8 meters
Date: 8 December, 2015

Madrella amphora Pola and Gosliner 2019

This species is a member of the family Madrellidae, a small family closely related to the Proctonotidae but its members have an oral veil. Species of this group feed on bryozoans. The body of Madrella amphora is transparent brownish. It's cerata are shaped like bottles or bowling pins, with a network of opaque white pigment. The species is known only from Papua New Guinea and is found under coral rubble in 7 m, on barrier reefs.


Marta Pola, Joshua M. Hallas, Terrence M. Gosliner. 2019. Welcome back Janolidae and Antiopella: Improving the understanding of Janolidae and Madrellidae (Cladobranchia, Heterobranchia) with description of four new species. Journ. of Zool. Sys. and Evol. Research. 57 (2): 345-368.

Dave Behrens
Sammamish, WA 98074
Oct., 2022
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Hi Nudibranch fans,Jim has just updated his library of E-Books !

Jim Anderson
Linlithgow, Scotland
Oct. 2022
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Jim is also the Webmaster of

WEBMASTER'S NOTES: Jim's offering certainly belongs in your library of nudibranch ID compendia! The photography is spectacular with the added bonus of updated taxonomic placements!

Jim's E-Books can now be purchased and downloaded from Gumroad .

An architect who retired from practice in 2011, Jim Anderson is fascinated by the incredibly colourful world that lies just a short distance from the shore around the coast of his home in Scotland. He learned to dive there and very quickly discovered the diversity and extravagance of life that the grey sea does well to disguise. Photography started as a means of recording these sights - to try in some way to let others into this wonderful new world that was opening up.

He commenced diving in 1987 and has recorded over 5000 dives, over 2400 around Scotland, mostly with a camera in hand and has developed special skills in capturing images that have been widely published in national diving publications and identification guides. He is the proprietor of the portal to his extensive nudibranch and other web sites covering his home country and the destinations he has visited in the Philippines,Papua New Guinea, Indonesia, Maldives, Red Sea, Kenya, Ireland and in the Caribbean. He is a 1st Class Examiner with the Scottish Sub Aqua Club and delivers Nudibranch Identification courses on behalf of the UK Marine Conservation Society." Jim also has several nudibranch identification guides available at very reasonable prices! Check it out!

For an overview of Jim's present camera equipment and in the past, please go to camera gear .

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