1. Bickell, L.R.: Larval development, metamorphosis, and juvenile feeding of Doridella steinbergae (Lance) (Opisthobranchia: Nudibranchia), 226 pp. M.Sc. thesis, University of Alberta 1978
2. Bonar, D.B.: Morphogenesis at metamorphosis in opisthobranch molluscs. In: Settlement and metamorphosis of marine invertebrate larvae, pp 177?196. Ed. by F.S. Chia and M.E. Rice. New York: Elsevier/North Holland 1978
3. ? and M.G. Hadfield: Metamorphosis of the marine gastropod Phestilla sibogae Bergh (Nudibranchia: Aeolidacea). I. Light and electron microscope analysis of larval and metamorphic stages. J. exp. mar. Biol. Ecol. 16, 227?255 (1974)
4. Bridges, C.: Larval development of Phyllaplysia taylori Dall, with a discussion of development in the Anaspiea (Opisthobranchiata: Anaspidea). Ophelia 14, 161?184 (1975)
5. Casteel, D.B.: The cell-lineage and early larval development of Fiona marina, a nudibranch mollusk. Proc. Acad. nat. Sci. Philad. 56, 325?405 (1904)