original description
Agassiz, A. (1879). Preliminary report on the Echini of the Exploring Expedition of H.M.S "Challenger". Sir C. Wyville Thomson Chief of Civilian Staff. <em>Proceedings of the American Academy of Arts and Sciences.</em> new series 6, 190-212., available online at https://biodiversitylibrary.org/page/8714483
page(s): 208 [details]
original description
(of Urechinus agassizi Lambert & Thiéry, 1924) Lambert, J. & Thiéry, P. (1909-1925). Essai de Nomenclature Raisonnée des Echinides. L. Ferrière, Chaumont. fasc. 1: i-iii, 1-80, pls. 1-2 (March 1909); fasc. 2: 81-160, pls. 3-4 (July 1910); fasc. 3: 161-240, pls. 5-6 (May 1911); fasc. 4: 241-320, pls. 7-8 (March 1914); fasc. 5: 321-384, pl. 9 (Sept. 1921); fasc. 6-7: 385-512, pls. 10-11, 14 (Dec. 1924); fasc. 7-8: 513-607, pls. 12, 13, 15 (Feb. 1925) pp., available online at http://de.scribd.com/doc/17477843/Essai-de-Nomenclature-Raisonnee-des-Echinides#source:facebook
page(s): 422 [details]
original description
(of Urechinus fragilis Koehler, 1908) Koehler, R. (1908). Astéries, Ophiures et Échinides de l'Expédition Antarctique Nationale Écossaise. <em>Transactions of the Royal Society of Edinburgh.</em> 46 (22): 529-649., available online at https://www.biodiversitylibrary.org/page/41730383
page(s): 624-625; pl. 16: figs 159-162 [details]
context source (Deepsea)
Natural History Museum, London (NHM): Collections Management Database System. [details]
basis of record
David, B., T. Choné, A. Festeau & C. de Ridder (2004). Antarctic Echinoids, an Interactive Database. Editions Universitaires Dijon. Cd Rom. (look up in IMIS) [details]
status source
Mooi, R. & David, B. 1996. Phylogenetic analysis of extreme morphologies: deep-sea holasteroid echinoids. Journal of Natural History 30, 913-953., available online at https://doi.org/10.1080/00222939600770501
page(s): 945 [details] Available for editors [request]
From editor or global species database