WoRMS taxon details
original description
(of Didemnum opacum Ritter, 1907) Ritter, W. E. (1907). The ascidians collected by the United States Fisheries Bureau steamer Albatross on the coast of California during the summer of 1904. <em>Univ. Calif. Publ. Zool.</em> 4:1-52. [details]
original description
(of Trididemnum dellavallei Ritter & Forsyth, 1917) Ritter, W. E.; Forsyth, R. H. (1917). Ascidian of the littoral zone of southern California. <em>Univ. California Publ., Zool.</em> 16: 439-512. [details]
basis of record
Van Name, W. G. (1945). The North and South American ascidians. <em>Bull. Amer. Mus. Nat. Hist.</em> 84: 1-476., available online at http://digitallibrary.amnh.org/dspace/handle/2246/1186 [details]
additional source
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
From editor or global species database
Genetic nomenclature abbreviation Tropac [details]
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