TABLE S–9. References

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Behrens, David W., and Hans Bertsch. 2007. Taxonomic, Ecological and zoogeographic revisions to Pacific Coast Nudibranchs (Behrens, 1991). Western Society of Malacologists, Annual Report 37.

Bertsch, Hans. 1993. Opistobranquios (Mollusca) de la costa occidental de México. In: S.I. Salazar-Vallejo & N.E. González (eds.), Biodiversidad Marina y Costera de México. Comisión Nacional de Biodiversidad y CIQRO, México. Pp. 253–270.

Bertsch, Hans. 2002. The natural history of Doriopsilla gemela Gosliner, Schafer, and Millen, 1999 (Opisthobranchia: Nudibranchia), at Bahía de los Ángeles, Baja California, México. Western Society of Malacologists, Annual Report 33: 7–8.

Bertsch, Hans. 2007. Book news: review of two guides to western Mexican and Central American opisthobranchs, with biogeographic and supra-familial taxonomic comments. The Festivus 39 (1): 7–10.

Bertsch, Hans. 2007. Ten–year baseline study of annual variation in the opisthobranch (Mollusca: Gastropoda) populations at Bahía de los Ángeles, Baja California, México. In: G.D. Danemann & E. Ezcurra (eds.), Bahía de los Angeles: Recursos Naturales y Comunidad.

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Kerstitch, Alex, and Hans Bertsch. 2007. Sea of Cortez Marine Invertebrates: A Guide to the Pacific Coat, México to Perú. 2^nd Edition (Revised). Sea Challengers, Monterey, CA. 128 pp.

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Nybakken, J. W. 1978. Abundance, diversity and temporal variability in a California intertidal nudibranch assemblage. Marine Biology 45 (2): 129–146.