Bernard Picton is curator of marine invertebrates in the Natural Sciences Department at the National Museums Northern Ireland. He is the author of a number of books, including Sea Squirts and Sponges of Britain and Ireland (Princeton). Christine Morrow is a researcher at Queen’s University, Belfast. She studies nudibranchs and a variety of other marine invertebrates in addition to her main expertise, the taxonomy and systematics of sponges.

"Princeton is known for the high quality of its book production and this offering is no exception – the picture quality, especially, is spectacular. This book is a must for UK nudibranch divers."---Steve Weinman, Divernet

Bernard Picton is curator of marine invertebrates in the Natural Sciences Department at the National Museums Northern Ireland. He is the author of a number of books, including Sea Squirts and Sponges of Britain and Ireland (Princeton). Christine Morrow is a researcher at Queen’s University, Belfast. She studies nudibranchs and a variety of other marine invertebrates in addition to her main expertise, the taxonomy and systematics of sponges.

"Princeton is known for the high quality of its book production and this offering is no exception – the picture quality, especially, is spectacular. This book is a must for UK nudibranch divers."---Steve Weinman, Divernet

Bernard Picton is curator of marine invertebrates in the Natural Sciences Department at the National Museums Northern Ireland. He is the author of a number of books, including Sea Squirts and Sponges of Britain and Ireland (Princeton). Christine Morrow is a researcher at Queen’s University, Belfast. She studies nudibranchs and a variety of other marine invertebrates in addition to her main expertise, the taxonomy and systematics of sponges.

"Princeton is known for the high quality of its book production and this offering is no exception – the picture quality, especially, is spectacular. This book is a must for UK nudibranch divers."---Steve Weinman, Divernet