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The ontogeny of the chondrocranium in Clarias gariepinus: trends in siluroids

Identifieur interne : 006158 ( Istex/Corpus ); précédent : 006157; suivant : 006159

The ontogeny of the chondrocranium in Clarias gariepinus: trends in siluroids

Auteurs : D. Adriaens ; W. Verraes

Source :

RBID : ISTEX:C42E7C53FA55155BC03113E6939AB3BD75CD7AE7

English descriptors

Abstract

The ontogeny of the chondrocranium of 31 different stages of the African catfish Clarias gariepinus (Siluroidei: Clariidae) was studied, both from cleared and stained, and sectioned material. The fish ranged from 4.1 (1 day post‐hatching) to 127.0 mm SL (100 days post‐hatching). The chondrocranium of C. gariepinus seemed to correspond to the general adaptive trends in siluroids, especially in relation to the reduction of eye size and the dorso‐ventral flattening of the skull. The platybasic neurocranium involved several modifications related to the trabecular bars, the hypophyseal fenestra, the ethmoid region and even the olfactory nerves. Certain reductions were present, which have been observed in all siluroids (e.g. absence of the pila lateralis, the commissura lateralis, the myodomes) or are part of a variable trend within siluroids (e.g. reduction of the taenia marginalis anterior and the tectum synoticum). Compared with some other siluroid species, the neurocranium of C. gariepinus is well developed, for example in the otic region. The same was observed in the splanchnocranium where some general siluroid trends persist (e.g. isolation of palatine from pterygoquadrate, presence of ‘hyo‐symplectic‐pterygoquadrate’ plate). Some trends, as observed in other siluroids, were present also (e.g. interhyal continuous with suspensorium and ceratohyal, Meckel's cartilage initially continuous with the suspensorium). The branchial basket is well developed as all expected elements are present (basibranchials I‐IV, hypobranchials I‐IV, ceratobranchials I‐V, epibranchials I‐IV). Based on the observed ontogeny of C. gariepinus and data from the literature, a hypothesis was formulated which indicated the presence of a general reductional trend within siluroids. In C. gariepinus, all four (I‐IV) infrapharyngobranchials develop, although the anterior two are much reduced and fused with each other.

Url:
DOI: 10.1111/j.1095-8649.1997.tb01650.x

Links to Exploration step

ISTEX:C42E7C53FA55155BC03113E6939AB3BD75CD7AE7

Le document en format XML

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<term>Acrochordalis</term>
<term>Adriaens</term>
<term>Adriaens verraes</term>
<term>Ailia</term>
<term>Anterior</term>
<term>Anterior copula</term>
<term>Anterior otic cartilage</term>
<term>Anterior part</term>
<term>Anteriorly</term>
<term>Ariidae</term>
<term>Arius</term>
<term>Arius jella</term>
<term>Arratia</term>
<term>Arteria</term>
<term>Articulation</term>
<term>Audenaerde</term>
<term>Barbel</term>
<term>Basibranchial</term>
<term>Basibranchials</term>
<term>Basicapsular</term>
<term>Basicapsularis</term>
<term>Branchial</term>
<term>Branchial arches</term>
<term>Branchial basket</term>
<term>Callichthyidae</term>
<term>Cartilage</term>
<term>Cartilaginous</term>
<term>Cartilaginous mass</term>
<term>Cartilago</term>
<term>Cartilago acrochordalis</term>
<term>Cartilago ethmoideum</term>
<term>Cartilago meckeli</term>
<term>Cartilago oticalis</term>
<term>Cartilago submaxillaris</term>
<term>Caudal</term>
<term>Ceratobranchial</term>
<term>Ceratobranchiale</term>
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<term>Characidae</term>
<term>Chondrocranium</term>
<term>Chorda dorsalis</term>
<term>Clarias</term>
<term>Clarias gariepinus</term>
<term>Clariidae</term>
<term>Commissura</term>
<term>Commissura basicapsularis</term>
<term>Commissure</term>
<term>Congo belge</term>
<term>Copeia</term>
<term>Copula</term>
<term>Cornu</term>
<term>Cranii</term>
<term>Daget</term>
<term>Dorsal</term>
<term>Dorsal view</term>
<term>Epibranchiale</term>
<term>Epibranchials</term>
<term>Epiphysial</term>
<term>Epiphysial bridge</term>
<term>Epiphysialis</term>
<term>Ethmoid</term>
<term>Ethmoid plate</term>
<term>Ethmoid region</term>
<term>Ethmoideum</term>
<term>Facialis</term>
<term>Fenestra</term>
<term>Fenestra basicapsularis</term>
<term>Fenestra hypophysea</term>
<term>Fenestra sphenoidea</term>
<term>Fink fink</term>
<term>Foramen</term>
<term>Foramen nervus glossopharyngeus</term>
<term>Foramen nervus vagus</term>
<term>Foramen truncus hyomandibularis nervus facialis</term>
<term>Frontal view</term>
<term>Gariepinus</term>
<term>General trend</term>
<term>Glossopharyngeus</term>
<term>Heteropneustes</term>
<term>Heteropneustes fossilis</term>
<term>Heteropneustidae</term>
<term>Hoedeman</term>
<term>Howes teugels</term>
<term>Hyoid</term>
<term>Hyoid arch</term>
<term>Hyomandibularis</term>
<term>Hyosymplectic</term>
<term>Hypobranchial</term>
<term>Hypobranchiale</term>
<term>Hypobranchials</term>
<term>Hypohyals</term>
<term>Hypophysea</term>
<term>Ictaluridae</term>
<term>Incision</term>
<term>Infrapharyngobranchial</term>
<term>Infrapharyngobranchiale</term>
<term>Infrapharyngobranchials</term>
<term>Interhyal</term>
<term>Internal carotid artery</term>
<term>Jella</term>
<term>Lamina</term>
<term>Lamina orbitonasalis</term>
<term>Lamina praecerebralis</term>
<term>Lateral</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Mandibular</term>
<term>Marginalis</term>
<term>Maxillary</term>
<term>Maxillary bone</term>
<term>Medial</term>
<term>Medially</term>
<term>Nasi</term>
<term>Nervus</term>
<term>Neurocranium</term>
<term>Observation observation</term>
<term>Occipitalis</term>
<term>Olfactoria</term>
<term>Olfactory</term>
<term>Olfactory foramen</term>
<term>Ontogeny</term>
<term>Orbitonasalis</term>
<term>Osteocranium</term>
<term>Otic</term>
<term>Otic capsule</term>
<term>Otic capsules</term>
<term>Otic cartilages</term>
<term>Otic region</term>
<term>Oticalis</term>
<term>Palatine</term>
<term>Palatinum</term>
<term>Palatoquadratum</term>
<term>Pangasius</term>
<term>Parachordal</term>
<term>Parachordal plate</term>
<term>Pars quadrata</term>
<term>Pila</term>
<term>Pila occipitalis</term>
<term>Pilae occipitales</term>
<term>Pisces</term>
<term>Platybasic</term>
<term>Platybasic skull</term>
<term>Plotosidae</term>
<term>Poissons</term>
<term>Pons epiphysialis</term>
<term>Posteriorly</term>
<term>Posterius</term>
<term>Precerebral</term>
<term>Precerebral lamina</term>
<term>Precerebral process</term>
<term>Preorbital</term>
<term>Preorbital base</term>
<term>Previous stage</term>
<term>Processus</term>
<term>Processus coronoideus</term>
<term>Processus opercularis</term>
<term>Processus postorbitalis</term>
<term>Processus pterygoideus</term>
<term>Pterygoquadrate</term>
<term>Quadrata</term>
<term>Ramus</term>
<term>Revue</term>
<term>Rostral</term>
<term>Rostrally</term>
<term>Schilbeidae</term>
<term>Sciences zoologiques</term>
<term>Sensu</term>
<term>Sensu latu</term>
<term>Sensu strictu</term>
<term>Serial sections</term>
<term>Shes</term>
<term>Siluriformes</term>
<term>Siluroid</term>
<term>Siluroidei</term>
<term>Siluroids</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Solum</term>
<term>Solum nasi</term>
<term>Sphenoid</term>
<term>Sphenoidea</term>
<term>Splanchnocranium</term>
<term>Srinivasachar</term>
<term>Ssura</term>
<term>Ssura arteria carotis interna</term>
<term>Ssura metotica</term>
<term>Ssure</term>
<term>Strictu</term>
<term>Surlemont</term>
<term>Taenia</term>
<term>Taenia marginalis</term>
<term>Tectum</term>
<term>Tectum posterius</term>
<term>Tectum synoticum</term>
<term>Teleostei</term>
<term>Teugels</term>
<term>Thys</term>
<term>Tilak</term>
<term>Trabecula</term>
<term>Trabecula cranii</term>
<term>Trabecular</term>
<term>Trabecular bars</term>
<term>Trigeminus</term>
<term>Truncus</term>
<term>Vagus</term>
<term>Vagus nerve</term>
<term>Vagus nerves</term>
<term>Vandewalle</term>
<term>Ventral</term>
<term>Ventral view</term>
<term>Verraes</term>
<term>Weberian apparatus</term>
<term>Zoology</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en">
<term>Acrochordalis</term>
<term>Adriaens</term>
<term>Adriaens verraes</term>
<term>Ailia</term>
<term>Anterior</term>
<term>Anterior copula</term>
<term>Anterior otic cartilage</term>
<term>Anterior part</term>
<term>Anteriorly</term>
<term>Ariidae</term>
<term>Arius</term>
<term>Arius jella</term>
<term>Arratia</term>
<term>Arteria</term>
<term>Articulation</term>
<term>Audenaerde</term>
<term>Barbel</term>
<term>Basibranchial</term>
<term>Basibranchials</term>
<term>Basicapsular</term>
<term>Basicapsularis</term>
<term>Branchial</term>
<term>Branchial arches</term>
<term>Branchial basket</term>
<term>Callichthyidae</term>
<term>Cartilage</term>
<term>Cartilaginous</term>
<term>Cartilaginous mass</term>
<term>Cartilago</term>
<term>Cartilago acrochordalis</term>
<term>Cartilago ethmoideum</term>
<term>Cartilago meckeli</term>
<term>Cartilago oticalis</term>
<term>Cartilago submaxillaris</term>
<term>Caudal</term>
<term>Ceratobranchial</term>
<term>Ceratobranchiale</term>
<term>Ceratobranchials</term>
<term>Characidae</term>
<term>Chondrocranium</term>
<term>Chorda dorsalis</term>
<term>Clarias</term>
<term>Clarias gariepinus</term>
<term>Clariidae</term>
<term>Commissura</term>
<term>Commissura basicapsularis</term>
<term>Commissure</term>
<term>Congo belge</term>
<term>Copeia</term>
<term>Copula</term>
<term>Cornu</term>
<term>Cranii</term>
<term>Daget</term>
<term>Dorsal</term>
<term>Dorsal view</term>
<term>Epibranchiale</term>
<term>Epibranchials</term>
<term>Epiphysial</term>
<term>Epiphysial bridge</term>
<term>Epiphysialis</term>
<term>Ethmoid</term>
<term>Ethmoid plate</term>
<term>Ethmoid region</term>
<term>Ethmoideum</term>
<term>Facialis</term>
<term>Fenestra</term>
<term>Fenestra basicapsularis</term>
<term>Fenestra hypophysea</term>
<term>Fenestra sphenoidea</term>
<term>Fink fink</term>
<term>Foramen</term>
<term>Foramen nervus glossopharyngeus</term>
<term>Foramen nervus vagus</term>
<term>Foramen truncus hyomandibularis nervus facialis</term>
<term>Frontal view</term>
<term>Gariepinus</term>
<term>General trend</term>
<term>Glossopharyngeus</term>
<term>Heteropneustes</term>
<term>Heteropneustes fossilis</term>
<term>Heteropneustidae</term>
<term>Hoedeman</term>
<term>Howes teugels</term>
<term>Hyoid</term>
<term>Hyoid arch</term>
<term>Hyomandibularis</term>
<term>Hyosymplectic</term>
<term>Hypobranchial</term>
<term>Hypobranchiale</term>
<term>Hypobranchials</term>
<term>Hypohyals</term>
<term>Hypophysea</term>
<term>Ictaluridae</term>
<term>Incision</term>
<term>Infrapharyngobranchial</term>
<term>Infrapharyngobranchiale</term>
<term>Infrapharyngobranchials</term>
<term>Interhyal</term>
<term>Internal carotid artery</term>
<term>Jella</term>
<term>Lamina</term>
<term>Lamina orbitonasalis</term>
<term>Lamina praecerebralis</term>
<term>Lateral</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Mandibular</term>
<term>Marginalis</term>
<term>Maxillary</term>
<term>Maxillary bone</term>
<term>Medial</term>
<term>Medially</term>
<term>Nasi</term>
<term>Nervus</term>
<term>Neurocranium</term>
<term>Observation observation</term>
<term>Occipitalis</term>
<term>Olfactoria</term>
<term>Olfactory</term>
<term>Olfactory foramen</term>
<term>Ontogeny</term>
<term>Orbitonasalis</term>
<term>Osteocranium</term>
<term>Otic</term>
<term>Otic capsule</term>
<term>Otic capsules</term>
<term>Otic cartilages</term>
<term>Otic region</term>
<term>Oticalis</term>
<term>Palatine</term>
<term>Palatinum</term>
<term>Palatoquadratum</term>
<term>Pangasius</term>
<term>Parachordal</term>
<term>Parachordal plate</term>
<term>Pars quadrata</term>
<term>Pila</term>
<term>Pila occipitalis</term>
<term>Pilae occipitales</term>
<term>Pisces</term>
<term>Platybasic</term>
<term>Platybasic skull</term>
<term>Plotosidae</term>
<term>Poissons</term>
<term>Pons epiphysialis</term>
<term>Posteriorly</term>
<term>Posterius</term>
<term>Precerebral</term>
<term>Precerebral lamina</term>
<term>Precerebral process</term>
<term>Preorbital</term>
<term>Preorbital base</term>
<term>Previous stage</term>
<term>Processus</term>
<term>Processus coronoideus</term>
<term>Processus opercularis</term>
<term>Processus postorbitalis</term>
<term>Processus pterygoideus</term>
<term>Pterygoquadrate</term>
<term>Quadrata</term>
<term>Ramus</term>
<term>Revue</term>
<term>Rostral</term>
<term>Rostrally</term>
<term>Schilbeidae</term>
<term>Sciences zoologiques</term>
<term>Sensu</term>
<term>Sensu latu</term>
<term>Sensu strictu</term>
<term>Serial sections</term>
<term>Shes</term>
<term>Siluriformes</term>
<term>Siluroid</term>
<term>Siluroidei</term>
<term>Siluroids</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Solum</term>
<term>Solum nasi</term>
<term>Sphenoid</term>
<term>Sphenoidea</term>
<term>Splanchnocranium</term>
<term>Srinivasachar</term>
<term>Ssura</term>
<term>Ssura arteria carotis interna</term>
<term>Ssura metotica</term>
<term>Ssure</term>
<term>Strictu</term>
<term>Surlemont</term>
<term>Taenia</term>
<term>Taenia marginalis</term>
<term>Tectum</term>
<term>Tectum posterius</term>
<term>Tectum synoticum</term>
<term>Teleostei</term>
<term>Teugels</term>
<term>Thys</term>
<term>Tilak</term>
<term>Trabecula</term>
<term>Trabecula cranii</term>
<term>Trabecular</term>
<term>Trabecular bars</term>
<term>Trigeminus</term>
<term>Truncus</term>
<term>Vagus</term>
<term>Vagus nerve</term>
<term>Vagus nerves</term>
<term>Vandewalle</term>
<term>Ventral</term>
<term>Ventral view</term>
<term>Verraes</term>
<term>Weberian apparatus</term>
<term>Zoology</term>
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<front>
<div type="abstract" xml:lang="en">The ontogeny of the chondrocranium of 31 different stages of the African catfish Clarias gariepinus (Siluroidei: Clariidae) was studied, both from cleared and stained, and sectioned material. The fish ranged from 4.1 (1 day post‐hatching) to 127.0 mm SL (100 days post‐hatching). The chondrocranium of C. gariepinus seemed to correspond to the general adaptive trends in siluroids, especially in relation to the reduction of eye size and the dorso‐ventral flattening of the skull. The platybasic neurocranium involved several modifications related to the trabecular bars, the hypophyseal fenestra, the ethmoid region and even the olfactory nerves. Certain reductions were present, which have been observed in all siluroids (e.g. absence of the pila lateralis, the commissura lateralis, the myodomes) or are part of a variable trend within siluroids (e.g. reduction of the taenia marginalis anterior and the tectum synoticum). Compared with some other siluroid species, the neurocranium of C. gariepinus is well developed, for example in the otic region. The same was observed in the splanchnocranium where some general siluroid trends persist (e.g. isolation of palatine from pterygoquadrate, presence of ‘hyo‐symplectic‐pterygoquadrate’ plate). Some trends, as observed in other siluroids, were present also (e.g. interhyal continuous with suspensorium and ceratohyal, Meckel's cartilage initially continuous with the suspensorium). The branchial basket is well developed as all expected elements are present (basibranchials I‐IV, hypobranchials I‐IV, ceratobranchials I‐V, epibranchials I‐IV). Based on the observed ontogeny of C. gariepinus and data from the literature, a hypothesis was formulated which indicated the presence of a general reductional trend within siluroids. In C. gariepinus, all four (I‐IV) infrapharyngobranchials develop, although the anterior two are much reduced and fused with each other.</div>
</front>
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<abstract>The ontogeny of the chondrocranium of 31 different stages of the African catfish Clarias gariepinus (Siluroidei: Clariidae) was studied, both from cleared and stained, and sectioned material. The fish ranged from 4.1 (1 day post‐hatching) to 127.0 mm SL (100 days post‐hatching). The chondrocranium of C. gariepinus seemed to correspond to the general adaptive trends in siluroids, especially in relation to the reduction of eye size and the dorso‐ventral flattening of the skull. The platybasic neurocranium involved several modifications related to the trabecular bars, the hypophyseal fenestra, the ethmoid region and even the olfactory nerves. Certain reductions were present, which have been observed in all siluroids (e.g. absence of the pila lateralis, the commissura lateralis, the myodomes) or are part of a variable trend within siluroids (e.g. reduction of the taenia marginalis anterior and the tectum synoticum). Compared with some other siluroid species, the neurocranium of C. gariepinus is well developed, for example in the otic region. The same was observed in the splanchnocranium where some general siluroid trends persist (e.g. isolation of palatine from pterygoquadrate, presence of ‘hyo‐symplectic‐pterygoquadrate’ plate). Some trends, as observed in other siluroids, were present also (e.g. interhyal continuous with suspensorium and ceratohyal, Meckel's cartilage initially continuous with the suspensorium). The branchial basket is well developed as all expected elements are present (basibranchials I‐IV, hypobranchials I‐IV, ceratobranchials I‐V, epibranchials I‐IV). Based on the observed ontogeny of C. gariepinus and data from the literature, a hypothesis was formulated which indicated the presence of a general reductional trend within siluroids. In C. gariepinus, all four (I‐IV) infrapharyngobranchials develop, although the anterior two are much reduced and fused with each other.</abstract>
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<p>The ontogeny of the chondrocranium of 31 different stages of the African catfish
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<abstract lang="en">The ontogeny of the chondrocranium of 31 different stages of the African catfish Clarias gariepinus (Siluroidei: Clariidae) was studied, both from cleared and stained, and sectioned material. The fish ranged from 4.1 (1 day post‐hatching) to 127.0 mm SL (100 days post‐hatching). The chondrocranium of C. gariepinus seemed to correspond to the general adaptive trends in siluroids, especially in relation to the reduction of eye size and the dorso‐ventral flattening of the skull. The platybasic neurocranium involved several modifications related to the trabecular bars, the hypophyseal fenestra, the ethmoid region and even the olfactory nerves. Certain reductions were present, which have been observed in all siluroids (e.g. absence of the pila lateralis, the commissura lateralis, the myodomes) or are part of a variable trend within siluroids (e.g. reduction of the taenia marginalis anterior and the tectum synoticum). Compared with some other siluroid species, the neurocranium of C. gariepinus is well developed, for example in the otic region. The same was observed in the splanchnocranium where some general siluroid trends persist (e.g. isolation of palatine from pterygoquadrate, presence of ‘hyo‐symplectic‐pterygoquadrate’ plate). Some trends, as observed in other siluroids, were present also (e.g. interhyal continuous with suspensorium and ceratohyal, Meckel's cartilage initially continuous with the suspensorium). The branchial basket is well developed as all expected elements are present (basibranchials I‐IV, hypobranchials I‐IV, ceratobranchials I‐V, epibranchials I‐IV). Based on the observed ontogeny of C. gariepinus and data from the literature, a hypothesis was formulated which indicated the presence of a general reductional trend within siluroids. In C. gariepinus, all four (I‐IV) infrapharyngobranchials develop, although the anterior two are much reduced and fused with each other.</abstract>
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