Redescription of Robsonella fontaniana (Cephalopoda: Octopodidae)

C. M. Ibáñez, R. D. Sepúlveda, J. Guerrero, J. Chong

Resultado de la investigación: Contribución a una revistaArtículo

12 Citas (Scopus)


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.

Idioma originalInglés
Páginas (desde-hasta)617-624
Número de páginas8
PublicaciónJournal of the Marine Biological Association of the United Kingdom
EstadoPublicada - may 2008

Áreas temáticas de ASJC Scopus

  • Ciencias acuáticas

Huella Profundice en los temas de investigación de 'Redescription of Robsonella fontaniana (Cephalopoda: Octopodidae)'. En conjunto forman una huella única.

  • Citar esto