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Titre du document / Document title

First report of cannibalism in Triplofusus giganteus (Gastropoda: Fasciolariidae)

Auteur(s) / Author(s)

DIETL Gregory P. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Zoology, North Carolina State University, Raleigh, North Carolina 27695-7617, ETATS-UNIS

Résumé / Abstract

The horse conch Triplofusus giganteus Kiener is the largest predatory gastropod in the western Atlantic (Abbott, 1974). In Florida, the major prey items in the diet of T. giganteus are other gastropods and bivalves (Menzel and Nichy, 1958; Hathaway and Woodburn, 1961; Paine, 1963a,b; Kent, 1983; Kuhlmann, 1994). Observations of the feeding biology of T. giganteus and other large-sized fasciolariid species indicate a preference for gastropods over bivalves (Risbec, 1932; Wells, 1958; Paine, 1963a, 1966; Maes, 1967; Jory, 1985; Stupakoff, 1986; Edward et al., 1992). Wells (1958) was the first to report on the prey-handling behavior of T. giganteus, which is very similar to that of Fasciolaria hunteria. He stated that when attacking gastropod prey, the predator attaches firmly to the operculum of its victim, preventing the characteristic withdrawal of soft parts to the relative safety of the shell. While holding the prey in the expanded condition, the predator rasps and devours the soft parts except the columellar muscle attached to the operculum. Cannibalism, or intraspecific predation, has been observed in the genus Fasciolaria (Wells, 1958; Paine, 1963a; Wells 1970; Snyder and Snyder, 1971; Table 1). However, there are no reports of cannibalism in members of the closely related taxa, Triplofusus and Pleuroploca. This brief note is the first to document the occurrence of cannibalism in Triplofusus.

Revue / Journal Title

Bulletin of marine science    ISSN  0007-4977   CODEN BMRSAW 

Source / Source

2003, vol. 73, no3, pp. 757-761 [5 page(s) (article)] (17 ref.)

Langue / Language

Anglais

Editeur / Publisher

Allen, Lawrence, KA, ETATS-UNIS  (1965) (Revue)

Mots-clés anglais / English Keywords

Invertebrata

;

Mollusca

;

Gastropoda

;

Marine environment

;

Cannibalism

;

Mots-clés français / French Keywords

Invertebrata

;

Mollusca

;

Gastropoda

;

Milieu marin

;

Cannibalisme

;

Mots-clés espagnols / Spanish Keywords

Invertebrata

;

Mollusca

;

Gastropoda

;

Medio marino

;

Canibalismo

;

Localisation / Location

INIST-CNRS, Cote INIST : 11286, 35400011719516.0170

Nº notice refdoc (ud4) : 15707271



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