Journal Article
Osteology and myology of the cephalic region and pectoral girdle of Cetopsis coecutiens Spix & Agassiz, 1829, comparison with other cetopsids, and comments on the synapomorphies and phylogenetic position of the Cetopsidae (Teleostei : Siluriformes)
Diogo, R., Chardon, M. and Vandewalle, P.
Record Number:
5546
Year:
2006
Journal:
Belgian Journal of Zoology
Pages:
3-13
Volume:
136
Abstract:
ABSTRACT. The cephalic and pectoral girdle structures of the cetopsid Cetopsis coecutiens (Cetopsinae) are
described and compared with those of another species of the subfamily Cetopsinae, Hemicetopsis candiru, and of one
species of the single genus of the subfamily Helogeninae, Helogenes marmoratus, as well as of several other catfishes.
Our observations and comparisons support Mo's 1991 and de Pinna's 1998 phylogenetic hypothesis, according to
which the cetopsids occupy a rather basal position within the Siluriformes. In addition, our observations and comparisons
pointed out three new, additional characters to diagnose the family Cetopsidae, namely : 1) presence of a muscle
6 of the mandibular barbels; 2) medial branchiostegal rays long and stout; 3) mandibular barbels originate on the posteroventral
surface of their irregularly shaped basal cartilages.
KEY WORDS : catfish, cephalic region, Cetopsidae, Cetopsis, comparative morphology, pectoral girdle, phylogeny,
Siluriformes.
Times Cited:
2
Relevent Species:
Related Records:
Lichtenstein M.H.C. (1819)
Ueber einige neue Arten von Fischen aus der Gattung Silurus
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synapomorphies and phylogenetic position of the Cetopsidae (Teleostei : Siluriformes)
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