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Sisor rabdophorus – A study in adaptation and natural relationship
Author(s) -
Mahajan C. L.
Publication year - 1966
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1966.tb04055.x
Subject(s) - biology , skull , adaptation (eye) , loricariidae , character (mathematics) , natural (archaeology) , evolutionary biology , articulation (sociology) , head (geology) , anatomy , zoology , fish <actinopterygii> , paleontology , neuroscience , geometry , fishery , mathematics , catfish , politics , political science , law
A detailed description of the head skeleton of Sisor rabdophorus Hamilton is given. It has been shown that in general the skull conforms to the normal siluroid pattern and in particular shares most of the characteristic features of the family Sisoridae. It is, however, highly specialized for sluggish bottom life and shows certain unique features not only among sisorids but all Indian siluroids, e. g. the movable articulation of the premaxillae with the ethmoid (a character shared with most highly specialized South American families, Loricariidae and Callichthyidae) and their edentulous nature; the small and edentulous nature of dentaries, etc.