Mortensen, T. (1948a). Contributions to the Biology of the Philippine Archipelago and adjacent regions. Report on the Echinoidea collected by the United States Fisheries Steamer "Albatross" during the Philippine Expedition, 1907-1910. Part 3: The Echinoneidae, Echinolampidae, Clypeastridae, Arachnidae, Laganidae, Fibulariidae, Urechinidae, Echinocorythidae, Palaeostomatidae, Micrasteridae, Palaepneustidae, Hemiasteridae, and Spatangidae. Smithsonian Institution, United States National Museum Bulletin Bulletin. 100, 93-140.
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Mortensen, T.
1948
Contributions to the Biology of the Philippine Archipelago and adjacent regions. Report on the Echinoidea collected by the United States Fisheries Steamer "Albatross" during the Philippine Expedition, 1907-1910. Part 3: The Echinoneidae, Echinolampidae, Clypeastridae, Arachnidae, Laganidae, Fibulariidae, Urechinidae, Echinocorythidae, Palaeostomatidae, Micrasteridae, Palaepneustidae, Hemiasteridae, and Spatangidae
Smithsonian Institution, United States National Museum Bulletin Bulletin