Bryozoa and Entoprocta collections

We care for the most significant collection of Bryozoa in the world, of which about 30% represents type material.

Specimen numbers

About the collection

The Bryozoa collections include those from eminent naturalists Dr George Johnston, George Busk, Rev. Thomas Hincks, Canon Alfred Merle Norman, Arthur Waters, Charles Darwin, Charles Lyell, Joseph Hooker, John Bowerbank John Bracebridge Wilson, John Gilchrist and Cyril Crossland.

More recently, important collections have been added by Peter Hayward, John Ryland, Paul Taylor and Mary Spencer Jones.

Highlighted holdings in the collection include the oldest known bryozoan collection from Japan, collected in the 1860s, and substantial collections from the Dutch Siboga Expedition to Indonesia. The freshwater bryozoan Phylactolaematida collections of Charles Rousselet and H.E. Hurrell are also significant.

There are three special collections housed independently within the Bryozoa collection. These are comprised of around 2,600 boxes and herbarium sheets, volume 2.89m³.

• Dr George Johnston: Focused specifically on UK material from Johnston’s publications between 1842-1847.
• British Museum Catalogue collection: George Busk published three volumes in 1852, 1854, 1875. He was sent or obtained material from many of the most famous expeditions and Victorian naturalists, including Edward Forbes, Charles Darwin, the Hookers, David Landsborough and Mrs Gatty.
• The HMS Challenger bryozoan collection: George Busk published two reports in 1884 and 1886. Arthur Waters completed a supplementary report in 1890.

Bryozoans are colonial animals, so it's difficult to estimate the number of specimens in the collection.

Collection strengths:

• Antarctic, Arctic, Atlantic, Australian and New Zealand material.
• Freshwater material.

Learn more about the collections