Abstract
The genus Cephaloscyllium Gill 1862 (Chondrichthyes, Carcharhiniformes, Scyliorhinidae), arguably has one representative species in the eastern Pacific, C. ventriosum (Garman 1880). While the C. ventriosum holotype was collected from central Chile, a dubious species, C. uter, (Jordan & Gilbert 1896) was described from California. Garman (1913) classified C. uter as a junior synonym of C. ventriosum. This study marks the first morphometric and meristic analysis comparing the holotype of C. ventriosum from Chile with California Cephaloscyllium specimens and presents a revision of the genus for the eastern Pacific. Based on a comparison of morphometric and meristic data from specimens collected from Monterey, California; Santa Catalina Island, California; Santa Barbara, California; Guadalupe Island, Mexico; and Valparaiso, Chile, it is concluded that the California and Chilean Cephaloscyllium species represent a single, wide-ranging species, C. ventriosum.References
Beebe, W. & Tee-Van, J. (1941) Eastern Pacific expeditions of the New York Zoological Society. XXV. Fishes from the tropical eastern Pacific. [From Cedros Island, Lower California, south to the Galápagos Islands and northern Peru.] Part 2. Sharks. Zoologica (New York), 26, 93–122.
Castro, J.I. (1983) The Sharks of North American Waters. Texas A&M University Press, College Station, Texas, 180 pp.
Chan, W.L. (1966) New sharks from the South China Sea. Journal of Zoology, 148, 218–237.
Compagno, L. J. V. (1984) FAO species catalogue. Vol. 4. Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 2. Carcharhiniformes. FAO Fishery Synopsis, 4, 251–655.
Compagno, L.J.V. (1988) Sharks of the Order Carcharhiniformes. Princeton University Press, Princeton, New Jersey, 467 pp.
Compagno, L.J.V. (2001) Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Volume 2. Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Species Catalogue for Fishery Purposes, 1, 2, 269 pp.
Compagno, L.J.V., Dando, M. & Fowler, S.L. (2005) Sharks of the World, Harper Collins Publishing Ltd., London, 368 pp.
Cox, K.W. (1963) Egg-cases of some elasmobranchs and a cyclostome from California waters. California Department of Fish and Game, 49, 4, 271–289.
Ebert, D.A. (2003) Sharks, Rays and Chimaeras of California. California Natural History Guides No. 71. University of California Press, Berkeley, California, 284 pp.
Eschmeyer, W.N., Herald, E.S. & Hammann, H. (1983) A field guide to Pacific coast fishes of North America. Houghton Mifflin Company, Boston, Massachusetts, 336 pp.
Ferguson, A. & Cailliet, G.M. (1990) Sharks and Rays of the Pacific Coast. Monterey Bay Aquarium Foundation, Monterey, California, 64 pp.
Garman, S. (1880) New species of selachians in the museum collection. Bulletin of the Museum of Comparative Zoology at Harvard University, 6, 167–172.
Garman, S. (1913) The Plagiostoma (Sharks, Skates, and Rays). Memoirs of the Museum of Comparative Zoology at Harvard College. Vol. 36, Benthic Press, Los Angeles, California, 515 pp.
Gill, T.N. (1862) Note on some genera of fishes of western North America. Proceedings of the Academy of Natural Sciences, Philadelphia, 14, 7-–9, 329–332.
Grover, C.A. (1972a) Predation on the egg cases of the swell shark, Cephaloscyllium ventriosum. Copeia, 4, 871–872.
Grover, C.A. (1972b) Population differences in the swell shark Cephaloscyllium ventriosum. California Department of Fish and Game, 58, 3, 191–197.
Grover, C.A. (1974) Juvenile denticles of the swell shark Cephaloscyllium ventriosum: function in hatching. Canadian Journal of Zoology, 52, 359–363.
Hubbs, C.L., Follett, W.I. & Dempster, L.J. (1979) List of the fishes of California. California Academy Science Occasional Papers, 133, 51 pp.
Jordan, D.S. & Gilbert, C.H. in Jordan, D.S. & Evermann, B.W. (1896) The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the isthmus of Panama. Part I. Bulletin of the United States National Museum, 47, 1–1240.
Jordan, D.S., Evermann, B.W. & Clark, H.W. (1930) Check list of the fishes and fishlike vertebrates of North and Middle America. Reprint Appendix X to Report United States Commercial Fisheries, 1928, 670 pp.
Jordan, D.S. & Fowler, H.W. (1903) A review of the elasmobranchiate fishes of Japan. Proceedings of the United States National Museum, 26, 593–674, Pls. 26–27.
Kato, S., Springer, S. & Wagner, M.H. (1967) Field guide to Eastern Pacific and Hawaiian sharks. United States Fish and Wildlife Service Circular, 271, 1–47.
Last, P.R. & Stevens, J.D. (1994) Sharks and rays of Australia. CSIRO, Publishing, Melbourne, 513 pp.
Love, M.S. (1996) Probably More than You Wanted to Know About the Fishes of the Pacific Coast. Really Big Press, Santa Barbara, California, 381 pp.
Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A. & Thorsteinson, L.K. (2005) Resource Inventory of Marine and Estuarine Fishes of the West Coast and Alaska: A Checklist of North Pacific and Arctic Ocean Species from Baja California to the Alaska-Yukon Border. U.S. Department of the Interior, U.S. Geological Survey, Biological Resource Division, Seattle, Washington, 276 pp.
Michael, S.W. (1993) Reef Sharks and Rays of the World: A Guide to their Identification, Ecology, and Behavior. Sea Challengers, Monterey, California, 107 pp.
Miller, D.J. & Lea, R.N. (1972) Guide to the coastal marine fishes of California. California Department of Fish and Game Fish Bulletin, 157, 1–235.
Nelson, D.R. & Johnson, R.H. (1970) Diel activity rhythms in the nocturnal, bottom dwelling sharks, Heterodontus francisci and Cephaloscyllium ventriosum. Copeia, 4, 732–739.
Regan, C.T. (1908) A Synopsis of the sharks of the family Scyliorhinidae. The Annals and Magazine of Natural History, 8, 1, 6, 453–465.
Roedel, P.M. (1953) Common ocean fishes of the California coast. California Department of Fish and Game, Fish Bulletin, 91, 1–184.
Roedel, P.M. & Ripley, W.E. (1950) California sharks and rays. California Department of Fish and Game, Fish Bulletin, 75, 1–88.
Springer, S. (1979) A Revision of the catsharks, Family Scyliorhinidae. NOAA Technical Report NMFS Circular, 422, 1–152.
Starks, E.C. (1917) The Sharks of California. California Department of Fish and Game, 3, 4, 145–153.
Walford, L.A. (1935) The Sharks and rays of California. California Department of Fish and Game, Fish Bulletin, 45, 1–66.
White, E.G. (1937) Interrelationships of the Elasmobranchs with a key to the Order Galea. Bulletin of the American Museum of Natural History, 74, 2, 25–138.
White, W.T. & Ebert, D.A. (2008) Cephaloscyllium hiscosellum sp. nov., a new swellshark (Carcharhiniformes: Scyliorhinidae) from northwestern Australia, pp. 171–178. In: P.R. Last, W.T. White & J.J. Pogonoski (Eds.), Descriptions of New Australian Chondrichthyans. CSIRO Marine & Atmospheric Research Paper 022, 358 pp.
Yano, K., Ahmad, A., Gambang, A.C., Hamid, I.A., Razak, S.A. & Zainal, A. (2005) Sharks and Rays of Malaysia and Brunei Darussalam. Kuala Terengganu, SEAFDEC-MFRDMD, 530 pp