Elisabeth Lippitsch

Karl-Franzens-Universität Graz | KFU Graz · Institute of Zoology

A re-examination of the types of Tilapia nubila and other specimens supposed to belong to this species revealed that several species have been confused under that name. The species is re-described. 'Haplochromis' oligolepis, new species, differs from 'H.' nubilus especially by gilt rakers bluntly conical (vs. bi- and trifid), and inner tooth rows i...

Characters of scale morphology and squamation patterns have proved useful für phylogenetic investigations in cichlids. About 100 characters with more than 350 character states have been identified in a study covering so rar 500 species from the whole range of distribution of the farnily. Comparative work hag shown that most of these characters are...

The phylogeny of the various cichlid lineages in Lake Tanganyika has been investigated applying scale morphology and squamation characters. The monophyly of the established tribes is assessed and evidence is given for their interrelationships as well as their phyletic position within the family Cichlidae.

The Baid formation (Ad Darb locality, Tihamat Asir. SW Saudi Arabia) is Oligocene in age. The sediments have been deposited in one of a series of several alkaline continental lakes that once flanked the early Red Sea Rift. So far seven specimens of cichlid fish have been discovered there. They represent at least three different species. One species...

The phylogeny of the haplochromine cichlids of Lake Kivu was studied using lepidological characters. Only one species, Haplochromis astatodon was found to have a closer relationship to a group outside Lake Kivu, namely Haplochromis sensu stricto. The other 14 species form a monophyletic lineage that is part of a subdivision in the large Lake Victor...

Scale and squamation characters have proved to be useful in investigating phyletic relationships in the family Cichlidae. To provide a sound basis for a cladistic analysis the plesiomorphic states have to be determined. This has been done for the family as a whole as well as for some phyletic lineages. Based on those characters the phylogeny within...

Phyletic relations within the haplochromine cichlids of East Africa were investigated using scale and squamation characters. Within the L. Victoria–Edward–Kivu species flock most of the genera proposed in Greenwood's revision could be confirmed by this approach. In addition the genera could be interrelated phylogenetically. They form two distinct s...

Squamation and scale morphology provide interesting characters for phyletic analysis within the Cichlidae. It is not known, however, to what extent these characters are genetically fixed or determined by environmental parameters. To clarify this point, a study on Sarotherodon galilaeus was conducted. This species has an extensive distribution and l...

Problems in cichlid systematics call for new characteristics to be exploited. Scale surface morphology and squamation patterns could provide novel and useful information. A comparative study comprising 105 African, 10 American, and eight outgroup species was conducted to identify the most useful scale and squamation characters within the family and...