Skip to content. | Skip to navigation

Personal tools

You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / 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)

R Diogo, M Chardon and P Vandewalle (2006)

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)

BELGIAN JOURNAL OF ZOOLOGY, 136(1):3-13.

The cephalic and pectoral girdle structures of the cetopsid Celopsis 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 Me'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.

catfish; cephalic region; Cetopsidae; Cetopsis; comparative morphology; pectoral girdle; phylogeny; Siluriformes
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology