Descriptive anatomy of Iso rhothophilus (Ogilby), with a phylogenetic analysis of Iso and a redefinition of Isonidae (Atheriniformes)

Basim Saeed, Walter Ivantsoff and Aarn

aqua, International Journal of Ichthyology, pp. 25-43, Volume 11, Issue 1 – 1 February 2006


The musculoskeletal anatomy of Iso rhothophilus is described. A phylogenetic analysis of the genus, using eleven anatomical characters, indicates that the systematic hierarchy is (Iso flosmaris (I. nesiotes (I. rhothophilus (I. hawaiiensis, I. natalensis)))). Isonidae Rosen, 1964 is redefined and, on the basis of twenty characters (autapomorphic within Atheriniformes) shown to be distinct from Notocheiridae Schultz, 1950.

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