Reference : Morphology of the buccal apparatus and related structures in four Carapidae
Scientific journals : Article
Life sciences : Zoology
http://hdl.handle.net/2268/1870
Morphology of the buccal apparatus and related structures in four Carapidae
English
Parmentier, Eric mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
Chardon, Michel mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Poulicek, Mathieu mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Ecologie animale et écotoxicologie >]
Bussers, Jean-Claude mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Vandewalle, Pierre mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
Jul-1998
Australian Journal of Zoology
CSIRO Publishing
46
3
391-404
Yes (verified by ORBi)
International
0004-959X
Melbourne
Australia
[en] The aims of this study were (1) to compare the morphology of the buccal apparatus, the suspensorium and the opercle in four species of Carapidae (Carapus acus, Encheliophis boraborensis, Encheliophis homei and Encheliophis gracilis) and (2) to investigate the relationships between their cranial anatomy, their carnivorous diet, and their well known ability to enter holothurians.

The complex and strong dentition and the wide hyomandibular with thickenings that seem to suit the constraints of the adductor mandibulae muscles partly inserted on the neurocranium are signs of a carnivorous diet.

C. acus, E. boraborensis and E. homei have extremely strong buccal pieces and can protrude their upper jaws. However, in E. gracilis, the jaws are more slender, and the insertions of the A 1 along the entire length of the maxillary associated with the lack of mobility between the maxillary and the premaxillary prevent buccal protrusion. These differences could be related to the diet: C. acus, E. boraborensis and E. homei can feed on fishes and crustaceans, whereas E. gracilis feeds only on holothurian tissue.

The cephalic morphology of the four species is not incompatible with entering the host. However, the neutralisation of the suboperculum spine by ‘cartilaginous’ tissue could be considered to be a particular adaptation to this behaviour.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/1870
10.1071/ZO97035

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
2australian.pdfPublisher postprint551.25 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.