original description
(of Berthellina engeli ilisima Ev. Marcus & Er. Marcus, 1967) Marcus Ev.; Marcus Er. (1967). American opisthobranch mollusks Part I, Tropical American opisthobranchs, Part II, Opisthobranchs from the Gulf of California. <em>Studies in Tropical Oceanography.</em> 6: 1–256, pl. 1., available online at https://scholarlyrepository.miami.edu/cgi/viewcontent.cgi?article=1009&context=trop_ocean
page(s): 160, fig. 18 [details] Available for editors [request]
basis of record
Valdés A. (2019). Northeast Pacific benthic shelled sea slugs. <em>Zoosymposia.</em> 13: 242-304., available online at http://dx.doi.org/10.11646/zoosymposia.13.1.21
page(s): 252, figs 3C, 4B [details]
additional source
Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls. [details]
From editor or global species database
Distribution Santa Barbara, California to the Galapagos Islands; reports from California occur during El Niño events; intertidal to subtidal. [details]