Report on the Polyzoa collected by H.M.S. Challenger during the years 1873-1876. Part 2. The Cyclostomata, Ctenostomata and Pedicellinea.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith