Development and diversity of the suspensorium of trichomycterids and comparison with loricarioids (Teleostei: Siluriformes)

@article{Arratia1990DevelopmentAD,
  title={Development and diversity of the suspensorium of trichomycterids and comparison with loricarioids (Teleostei: Siluriformes)},
  author={Gloria Arratia},
  journal={Journal of Morphology},
  year={1990},
  volume={205}
}
  • G. Arratia
  • Published 1 August 1990
  • Biology
  • Journal of Morphology
Studies of ontogenetic series of trichomycterids and other catfishes reveal that the suspensorium of siluroids is highly specialized; several synapomorphies separate siluroids from other teleosts. In siluroids, the palatoquadrate is divided into pars autopalatina and pars pterygoquadrata and both are usually connected by the autopaiatine‐metapterygoid ligament. The pterygoquadrate is broadly joined to the dorsal limb of the hyoid arch, forming a cartilaginous hyomandibular‐symplectic… 
Ontogeny of the suspensorial and opercular musculature in the suckermouth armoured catfish Ancistrus cf. triradiatus (Loricariidae, Siluriformes)
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Relative muscle sizes and orientations, as well as articular transformations and the transition from cartilaginous to bony skeletal elements, indicate ontogenetic transformations in the skeleto-muscular system, affecting and steering functionalities.
On the osteology and myology of the cephalic region and pectoral girdle of Nematogenys inermis (Ghichenot, 1848), with comments on the autapomorphies and phylo genetic relationships of the Nematogenyidae (Teleostei: Siluriformes)
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This study supports Mo's 1991 and de Pinna's 1992 phylogenetic hypotheses according to which the nematogenyids and the trichomycterids are sister-groups.
Development of the osteocranium in the suckermouth armored catfish Ancistrus cf. triradiatus (Loricariidae, siluriformes)
The development of the osteocranium of the suckermouth armored catfish Ancistrus cf. triradiatus is described based on specimens ranging from prehatching stages to juvenile stages where the
A new subfamily of Trichomycteridae (Teleostei, Siluriformes), lower loricarioid relationships and a discussion on the impact of additional taxa for phylogenetic analysis
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Characters support the hypothesis that copionodontines are the plesiomorphic sister group of all other trichomycterids, and that Trichogenes is their next successive sister group.
Development of the chondrocranium in the suckermouth armored catfish Ancistrus cf. triradiatus (Loricariidae, Siluriformes)
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A cartilaginous skeleton with many features common for Siluriformes, yet several aspects of A. cf.
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The morphology and function of the cephalic structures related to the feeding mechanism - movements of the mouth, suspensorium, opercular series, hyoid arch, maxillary barbels and mandibular bar- bels - was studied in two catfish species of the genus Phractura to point out several unusual morphological modifications.
Ontogeny of the hyoid musculature in the African catfish,Clarias gariepinus(Burchell, 1822) (Siluroidei: Clariidae)
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The protractor hyoidei is well developed, as it may play an important role in the opening of the mouth, the elevation of the hyoid bars and, as a typical catfish feature, the displacement of the mandibular barbels.
On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium
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Observations and comparisons indicate that catfish suspensorium consists of a hyomandibula+metapterygoid compound, which corresponds to the hyom andibula plus met adapterygoid of other teleosts.
Ontogeny and homology of the basipterygoid articulation in Pantodon buchholzi (Teleostei: Osteoglossomorpha)
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It is argued that the basipterygoid articulation in osteoglossoids is homologous to that in non teleostean actinopterygians and represents a plesiomorphic character state at the level of Osteoglossomorpha.
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