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Redescription of Robsonella fontaniana (Cephalopoda: Octopodidae)

Published online by Cambridge University Press:  14 May 2008

C.M. Ibáñez ,
R.D. Sepúlveda ,
J. Guerrero  and
J. Chong
C.M. Ibáñez*
Affiliation:
Instituto de Ecología y Biodiversidad, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Casilla 653, Ñuñoa, Santiago, Chile
R.D. Sepúlveda
Affiliation:
Instituto de Ecología y Evolución, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
J. Guerrero
Affiliation:
Zoologisches Institut und Museum der Universität Hamburg, Martin-Luther-King-Platz 3, D-20146 Hamburg, Germany
J. Chong
Affiliation:
Departamento de Ecología Costera, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Casilla 297, Concepción, Chile
*
Correspondence should be addressed to: C.M. IbáñezInstituto de Ecología y BiodiversidadDepartamento de Ciencias Ecológicas Facultad de Ciencias Universidad de Chile Las Palmeras 3425 Casilla 653 Ñuñoa SantiagoChile email: [email protected]
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Abstract

The genus Robsonella Adam, 1938 belongs to the family Octopodidae and can only be identified by some characters present in males. In this work the species Robsonella fontaniana is redescribed from morphological and morphometric characters of 33 specimens (21 males and 12 females) collected on the central-south coast of Chile, during the years 2003 and 2004, and of 11 specimens (three males and eight females) obtained from the Zoological Museum of Hamburg. New diagnoses for the genus Robsonella and the species R. fontaniana are provided. Sexual dimorphism in R. fontaniana is evident by adult males having enlarged suckers and a shorter third right arm compared to the females. Some morphological characters such as ligula, radula and terminal organ diverticulum make it possible to distinguish this genus clearly from other genera. The ligula of the hectocotylized arm in Robsonella is characterized by a longitudinal groove, rounded tip, large calamus and seven copulatory lamellae. In addition, the first lateral tooth in the radula is crescent-shaped; this allows the identification of Robsonella regardless of sex.

Keywords

CephalopodaOctopodidaeRobsonellaChile
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 3 , May 2008 , pp. 617 - 624
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Adam, V.W. (1938) Robsonella nom. nov. für Joubinia Robson, 1929 (Cephalopoda, Octopoda). Zoologischer Anzeiger 121, 223.Google Scholar
Adam, V.W. (1983) Cephalopoda from west and South Africa. Atlantide Report 13, 151–180.Google Scholar
Benham, W.B. (1943) The Octopodous Mollusca of New Zealand—II. Transactions and Proceedings of the Royal Society of New Zealand 73, 53–57.Google Scholar
D'Orbigny, A. (1834–1843) Mollusques, Voyage dans l'Amérique Méridionale 5, 1–758, Atlas of 85 plates. Paris: Pitois-Levrault.Google Scholar
Guerra, A., Cortez, T. and Rocha, F. (1999) Redescripción del pulpo de los Changos, Octopus mimus Gould, 1852, del litoral chileno-peruano (Mollusca, Cephalopoda). Iberus 17, 37–57.Google Scholar
Ibáñez, C.M., Sepúlveda, R.D. and Chong, J. (2006) A new species of Benthoctopus Grimpe, 1921 (Cephalopoda: Octopodidae) from the southeastern Pacific Ocean. Proceedings of the Biological Society of Washington 119, 355–364.CrossRefGoogle Scholar
Muus, B. (2002) The Bathypolypus–Benthoctopus problem of the north Atlantic (Octopodidae, Cephalopoda). Malacologia 44, 175–222.Google Scholar
Nesis, K.N. (1987) Cephalopods of the world. Neptune City: T.H.F. Publications Inc.Google Scholar
Nixon, M. (1998) The radulae of Cephalopoda. Smithsonian Contributions to Zoology 586, 39–53.Google Scholar
Norman, M.D. and Hochberg, F.G. (2005) The current state of Octopus taxonomy. Cephalopod biology, recruitment and culture, international cephalopod symposium and workshop. Phuket Marine Biological Research Bulletin 66, 127–154.Google Scholar
O'Shea, S. (1999) The marine fauna of New Zealand: Octopoda (Mollusca: Cephalopoda). NIWA Biodiversity Memoir 112. Wellington: NIWA.Google Scholar
Osorio, C., Atria, J. and Mann, S. (1979) Moluscos marinos de importancia económica en Chile. Biología Pesquera 11, 3–47.Google Scholar
Osorio, C., Peña, R., Ramajo, L. and Garcelon, N. (2006) Malacofauna bentónica de los canales oceánicos del sur de Chile (43°-45°S). Ciencia y Tecnología del Mar 29, 103–114.Google Scholar
Pickford, G.E. (1955) A revision of the Octopodinae in the collections of the British Museum. Part II. A re-examination of the specimens of Robsonella fontaniana in the collections of the British Museum. Bulletin of the British Museum (Natural History) Zoology, London 3, 163–167.CrossRefGoogle Scholar
Ré, R.E. (1998) Pulpos Octopódidos. In Boschi, E.E. (ed.) El Mar Argentino y sus recursos pesqueros Tomo 2. Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero, Secretaría de Agricultura, Ganadería, Pesca y Alimentación, pp. 69–98.Google Scholar
Robson, G.C. (1929) A monograph of the recent Cephalopoda. Part I Octopodinae. London: British Museum (Natural History).Google Scholar
Rocha, F. (1997) Cephalopods in Chilean waters, a review. Malacological Review 30, 101–113.Google Scholar
Roper, C.F. and Voss, G.L. 1983. Guidelines for taxonomic descriptions of cephalopods species. Memoirs of the Natural Museum Victoria 44, 49–63.Google Scholar
Sepúlveda, R.D., Sanhueza, E., Ruiz, J.F., Ibáñez, C. and Chong, J. (2004) Conducta de alimentación de Robsonella fontaniana (Orbigny, 1834) (Cephalopoda: Octopodidae) en Bahía San Vicente, XXIV Congreso de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.Google Scholar
Sweeney, M.J. (2001) Current Classification of Recent Cephalopoda. Available from http://www.cephbase.utmb.edu/spdb/speciesb.cfm [Accessed 10 February 2006.]Google Scholar
Sweeney, M.J. and Roper, C.F. 1998. Classification, type localities, and type repositories of Recent Cephalopoda. Smithsonian Contributions to Zoology 586, 561–595.Google Scholar
Thore, S. (1959) Cephalopoda. Reports of the Lund University Chile Expeditions 1948–49 33, 1–20.Google Scholar
Toll, R.B. (1988) The use of arm sucker number in octopodid systematics (Cephalopoda: Octopoda). American Malacological Bulletin 6, 207–211.Google Scholar
Toll, R.B. (1998) The systematic and nomenclatural status of the Octopodinae described from the Indian Ocean (excluding Australia) and the Red Sea. Smithsonian Contributions to Zoology 586, 475–487.Google Scholar