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Cybium,
Revue
Internationale dIchtyologie |
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Descriptive anatomy of Epiplatys sexfasciatus (Cyprinodontiformes: Aplocheilidae) and a phylogenetic analysis of Epiplatina AARN (1) & Margaret A. SHEPHERD (2) (1) NSW
Agriculture, PO Box 9, Balranald 2715, AUSTRALIA. Abstract.
- The external anatomy and osteology of Epiplatys sexfasciatus
is described. The distribution of twelve characters of fin placement,
the jaws, and hyobranchial apparatus, across ten species of Epiplatina,
and an outgroup, is described. Four further characters defined the monotypic
genera Aphyoplatys and Pseudepiplatys. Phylogenetic analysis
using PAUP software was largely uninformative, while an UPGMA analysis
proposed the hierarchy of relationships to be (Aphyoplatys, Pseudepiplatys),
((Callopanchina), ((Epiplatys sexfasciatus, E . singa,
((E. sangmelinensis, E. spilargyreius), (E. bifasciatus,
E. dageti, E. fasciolatus, E. multifasciatus)))).
The possible influence of paedomorphism on these analyses is discussed. Key-words. - Cyprinodontiformes - Aplocheilidae - Epiplatys - Osteology - Paedomorphism - Phylogenetic analysis. |
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