Description: English: Brissus agassizii Döderlein, 1885 Text : Plate 3.-Brissus (Allobrissus) agassizii Döderlein. A: Abactinal view of denuded test; B:Actinal view of test; C:Abactinal view of specimen with radioles; D: Side view of denuded test; E: Posterior end of test.-Photo: M. D. King. From: Two New Echinoids from Northern New Zealand, including a New Species of DiademaTransactions of the Royal Society of New Zealand : Zoology, Volume 8, Issue 23, 26 May 1967. Source:
https://paperspast.natlib.govt.nz/periodicals/TRSZOO19670526.2.2. Author: Alan N. Baker Photo: M. D. King Royal Society of New Zealand.