- ↑ 1.0 1.1 (1996) , database, NODC Taxonomic Code
- ↑ Kozloff, Eugene N. (1987) , Marine Invertebrates of the Pacific Northwest
- ↑ Maluf, Linda Yvonne (1988) Composition and distribution of the central eastern Pacific echinoderms, Natural History Museum of Los Angeles County, Technical Reports, no. 2
- ↑ Straughan, Dale, and Richard W. Klink (1980) A Taxonomic Listing of Common Marine Invertebrate Species from Southern California, Technical Reports of the Allan Hancock Foundation, no. 3
- ↑ 5.0 5.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ ITIS: The Integrated Taxonomic Information System. Orrell T. (custodian), 26 Abril 2011