Echinoidea name 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]
basis of record
Mortensen, T. (1950). A Monograph of the Echinoidea. V, 1. Spatangoida I. Protosternata, Meridosternata, Amphisternata I. Palæopneustidæ, Palæostomatidæ, Aëropsidæ, Toxasteridæ, Micrasteridæ, Hemiasteridæ, 432 pp., C. A. Reitzel, Copenhagen. page(s): 114-115 [details]
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