Books and Other Nudibranch References

Sea Slugs of the Red Sea
Author: Nathalie Yonow
This book brings together, for the first time, all known information on the species of sea slugs of the Red Sea, belonging to 130 genera and 52 families. The contents include discussions on taxonomy, distribution, bionomics, habitats, and ecology. An introductory chapter describes in detail the history of studies on sea slugs of the Red Sea, and includes a section reproducing the old engravings, most which have never been seen since their original publication. The book is excellently illustrated by nearly 500 photos of living animals in their natural habitats, representing some 189 species, many of which are depicted for the first time. This book will be of interest to marine biologists, systematists, ecologists, divers and all lovers of the incredible biodiversity of the Red Sea.
Nudibranch Behavior
Author: David W. Behrens
When other publicly available nudibranch books in the market focusing on the identification, this book written by Dave Behrens showing a different world of nudibranch by describing senses and respiration, locomotion and movements, feeding, reproduction, defenses, and color, camouflage and mimicry.

Good photographs and drawings complimenting this book along with interesting facts about nudibranch behavior and characteristics just makes this book is a must read for nudibranch aficionados.

One of Nudi Pixel highly recommended reading nudibranch book.
Undersea Jewels - A colour guide to Nudibranchs
Author: Gary Cobb & Richard C. Willan
This nicely laid out nudibranch identification book is a result of three years study of sea slugs in Sunshine Coast, southern Queensland, Australia.

Even though small portion of the species are eastern Australian endemic, but mostly could have been found in other Indo-West Pacific area.

This book describes more than 250 species. Every species is represented in one page with one big photo and two smaller photos. The description of each species are written in a way that even non-scientist will find it understandable and applicable for nudibranch identification. Another good thing about this book is all species are arranged into 11 color groups to make it easy for us as it is basic human nature to remembering the colors.

This book is highly recommended for all nudibranch enthusiasts and Nudi Pixel extensively uses this book for initial identification.
Indo Pacific Nudibranchs and Sea Slugs
Author: Terrence Gosliner, David Behrens, Angel Valdes
This is the most comprehensive guide to the tropical Indo-Pacific nudibranchs and sea slugs, covering from South Africa to Eastern Island and from southern Japan to northern Australia. Provides the most up-to-date identifications of species, based on the collective experience of the authors, who have been working professionally for many years on Indo-Pacific nudibranchs and sea slugs. An ideal guide for occasional recreational divers, as well as experienced underwater photographers interested in common animals or the rarest and most difficult to identify species.
Contains 1,397 species, including illustrations and descriptions of distinctive characteristics, natural history, size and geographic distribution. Two or more photographs illustrate variable species. Many photographs contributed by expert underwater photographers.

Sea Slug Forum
Author: Bill Rudman
This web site owned by Australian Museum and maintained by Dr. Bill Rudman is de-facto most extensively used for nudibranch identification on the Internet.

In Sea Slug Forum, you can ask questions and post information on sea slugs including nudibranchs, bubble-shells, sea hares and side-gilled slugs. Then your inquiries and Dr. Rudman's answers will be published for everyone to read.

Nudi Pixel has been using this web site extensively as identification reference. Thanks to Dr. Bill Rudman to maintain such a good nudibranch resources which publicly available.

Web Site
Nudibranchs Encyclopedia
Author: Neville Coleman
Neville has made the excellent decision to publish this massive book as a hardcover, and with its over 400 pages it really needs to be. The hardcover makes the book more professional and naturally it will last longer in any diver's library. He still managed to keep the book quite compact in its dimensions (160 x 235 mm) and for nudibranch fans this will still fit into their travel case.
In comparison to '1001 Nudibranchs' where the individual images were generally quite small, this book has a maximum of 8 images per page and the beauty of the photographs becomes much clearer. After all, it is the amazing colours and shapes that makes most people so attracted to these strange critters.

Some of the pictures in the book, in fact, are published in Nudi Pixel. Neville Coleman browsed through Nudi Pixel and have some of outstanding photos published in his book.
1001 Nudibranch
Author: Neville Coleman
Our first impression of the title of this book is that it presents 1001 nudibranch species. But it turned out that actually this book also shows some opistobranch, and about the number we never be sure as we never really do the counting.

This catalog of Indo Pacific sea slugs presents more than 1500 photographs which were taken by Neville Coleman during his 30 years expeditions throughout Australia and other area in Indo Pacific. Some fellow photographers also contributed to this book.

1001 Nudibranchs is comprehensive identification guide for Indo Pacific as ut has 1700 full color pictures, some of them come with hint for underwater photography.

The size of the book which is relatively small make it a good companion for travelling. Nudi Pixel often use this book for additional comparison of identification using photographs.
Nudibranchs of the World
Author: Helmut Debelius & Rudie H. Kuiter
This big book maybe not your companion for travel but as the title suggests, this guide covers more than 2500 species from all over the world which photographs were taken by Helmut Debelius, Rudie H. Kuiter, and many contributing diving friends and scientists from around the world.

Nudi Pixel photographers, Cesillia Kowijaya and Sher Monica Hutadjulu are listed as contributors in this book as well. Their photograph of Halgerda bacalusia and Tambja sp. are amongst the beautiful and bright nudibranch photos presented in this book.

It is highly recommended for dive operator and liveaboard owner to have a copy of Nudibranchs of the World on their shelf.
Nudibranchs and Sea Snails
Author: Helmut Debelius
Probably the oldest widely available nudibranch identification book in the market. Almost every dive operator and liveaboard has one copy of this book in their shelf.

Very beautiful, bright and colorful photos of nudibranch and sea snails in this book will help you explaining to your friend why you has so deep interests in the beauty of nudibranch and sea snails.

One room for improvement in this book is inaccurate and out of date species naming. The latter is understandable as this book was firstly released in 1996.
Marine Flatworms: The World of Polyclads
Author: Leslie Newman and Lester Cannon
Marine Flatworms provides a fascinating introduction to the intriguing world of polyclad flatworms, a group of large, free-living marine Platyhelminthes, which are found throughout the world but are most colourful in tropical waters. Although not related to molluscs, they are often mistaken for sea slugs because of their brilliant colour patterns.

Written in an accessible style by two leading experts in the field, this book explores flatworms’ unusual structure, feeding habits, their curious reproductive behaviour (including ‘penis fencing’), their mimicry and toxicology.

With a foreword by Professor Reinhardt Kristensen of the Copenhagen Zoological Museum, Marine Flatworms is the first comprehensive guide to polyclad families and genera. It contains more than 300 colour photographs from every part of the world
Fabulous Flatworms: a guide to marine polyclads
Author: Leslie Newman & Lester Cannon
Fabulous Flatworms enables users to distinguish and learn about hundreds of marine polyclads, commonly known as flatworms. Using an innovative key based on body patterns, it allows both amateurs and specialists to identify these beautiful underwater creatures.

Over 1200 colour photographs showcase the diversity of patterning and colour found acrosss some 400 species of flatworms from around the world. For each species therea re notes on appearance, size, habitat and distribution as well as multiple photographs to highlight their variability. A section on look-a-likes explains how to distinguish them from the more well known, but unrelated nudibranchs and other animals.

A wealth of information is also provided on their unusual biology, including videos of their more remarkable behaviours, and tips on collecting, handling and identifying these fragile animals.