(of)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]
Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira da Rocha, R.; Swalla, B.J.; Turon, X. (2021). Ascidiacea World Database. Aplidium californicum (Ritter & Forsyth, 1917). Accessed through: Rius, M.; Ahyong, S.; Costello, M. J.; Galil, B. S.; Gollasch, S.; Hutchings, P.; Katsanevakis, S.; Lejeusne, C.; Marchini, A.; Occhipinti, A.; Pagad, S.; Poore, G. C. B; Robinson, T. B.; Sterrer, W.; Turon, X.; Willan, R. C.; Zhan, A. (2021) World Register of Introduced Marine Species (WRiMS) at: https://marinespecies.org/introduced/aphia.php?p=taxdetails&id=249827 on 2021-04-10
Rius, M.; Ahyong, S.; Costello, M. J.; Galil, B. S.; Gollasch, S.; Hutchings, P.; Katsanevakis, S.; Lejeusne, C.; Marchini, A.; Occhipinti, A.; Pagad, S.; Poore, G. C. B; Robinson, T. B.; Sterrer, W.; Turon, X.; Willan, R. C.; Zhan, A. (2021). World Register of Introduced Marine Species (WRiMS). Aplidium californicum (Ritter & Forsyth, 1917). Accessed at: http://marinespecies.org/introduced/aphia.php?p=taxdetails&id=249827 on 2021-04-10
original description(of)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]
Present Inaccurate Introduced: alien Containing type locality
From regional or thematic species database
Introduced species vector dispersal Galapagos part of the South Pacific Ocean (Marine Region) Ships: accidental as attached or free-living fouling organisms [details]