MolluscaBase taxon details
basis of record
Krug P.J., Vendetti J.E. & Valdés Á. (2016). Molecular and morphological systematics of <i>Elysia</i> Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region. <em>Zootaxa.</em> 4148(1): 1-137., available online at https://doi.org/10.11646/zootaxa.4148.1.1 [details]
additional source
Jensen, K.R. (2007). Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). <em>Bonner Zoologische Beiträge.</em> 55: 255–281. [details]