Osteology and myology of the cephalic region and pectoral girdle of Glyptothorax fukiensis (Rendahl, 1925), comparison with other sisorids, and comments on the synapomorphies of the Sisoridae (Teleostei: Siluriformes)
نویسندگان
چکیده
The cephalic and pectoral girdle structures of the sisorid Glyptothorax fukiensis (tribe Glyptothoracini) are described and compared with those of representatives of the other three sisorid tribes, namely Glyptosternon reticulatum (tribe Glyptosternini), Bagarius yarreli (tribe Bagariini) and Gagata cenia (tribe Sisorini), as well as with those of several other catfishes, as the foundation for a discussion on the synapomorphies and phylogenetic relationships of the Sisoridae. Our observations and comparisons support de Pinnas (1996) phylogenetic hypothesis, according to which the Asiatic Sisoridae is the sister-group of a clade formed by the Neotropical Aspredinidae and the Asiatic Erethistidae. In addition, our observations and comparisons pointed out a new, additional character to diagnose the family Sisoridae, namely: presence of a welldeveloped, wide, deep fossa on the neurocranial floor between the ventro-medial surface of the pterotic and the ventro-lateral surface of the exoccipital.
منابع مشابه
Osteology and myology of the cephalic region and pectoral girdle of Erethistes pusillus, comparison with other erethistids, and comments on the synapomorphies and phylogenetic relationships of the Erethistidae (Teleostei: Siluriformes)
The cephalic and pectoral girdle structures of the erethistid Erethistes pusillus (Erethistinae) are described and compared with those of another species of the subfamily Erethistinae, namely Hara filamentosa, and of the single species of the subfamily Continae, Conta conta, as well as of several other catfishes, as the foundation for a discussion on the synapomorphies and phylogenetic position...
متن کاملOn the osteology and myology of the cephalic region and pectoral girdle of Franciscodoras marmoratus (Lütken 1874), comparison with other doradids, and comments on the synapomorphies and phylogenetic relationships of the Doradidae (Teleostei: Siluriformes)
The cephalic and pectoral girdle structures of Franciscodoras marmoratus are described and compared to those of representatives of the three main doradid groups, namely Anadoras weddellii (Astrodoradinae), Acanthodoras cataphractus (Platydoradinae) and Doras punctatus (Doradinae), as well as members of the other siluriform families, as the foundation for a discussion on the phylogenetic relatio...
متن کاملOsteology and Myology of the Cephalic Region and Pectoral Girdle of Bunocephalus Knerii, and a Discussion on the Phylogenetic Relationships of the Aspredinidae (teleostei: Siluriformes)
The cephalic and pectoral girdle structures of the aspredinid Bunocephalus knerii (Bunocephalinae) are described and compared with those of representatives of the two other aspredinid subfamilies, Aspredo aspredo (Aspredininae) and Xyliphius magdalenae (Hoplomyzontinae), as well as with other cat shes. This comparison serves as the foundation for a discussion on the phylogenetic position and a...
متن کاملOsteology and myology of the cephalic region and pectoral girdle of Pimelodus blochii, comparison with other pimelodines, and comments on the synapomorphies and phylogenetic relationships of the Pimelodinae (Ostariophysi: Siluriformes).
The cephalic and pectoral girdle structures of the pimelodin Pimelodus blochii (Pimelodus group) are described and compared to those of representatives of the two other main pimelodin groups, namely Calophysus macropterus (Calophysus group) and Pseudoplatystoma fasciatum (Sorubim group), and of a representative of the peculiar pimelodin genus Hypophthalmus, H. edentatus, and several other catfi...
متن کاملOsteology and myology of the cephalic region and pectoral girdle of Batrochoglanis raninus, with a discussion on the synapomorphies and phylogenetic relationships of the Pseudopimelodinae and Pimelodidae (Teleostei: Siluriformes)
The cephalic and pectoral girdle structures of the pseudopimelodin Batrochoglanis raninus are described and compared to those of a representative of another pseudopimelodin genera, namely Microglanis cottoides, as well as to several other pimelodid and non-pimelodid catfishes, as the foundation for a discussion on the synapomorphies and phylogenetic relationships of the Pseudopimelodinae. Our o...
متن کامل