Dr. Richard L. Mayden

Professor & Endowed Chair of Natural Sciences
Chair, Department of Biology

Department of Biology
3507 Laclede Ave
Saint Louis University
St. Louis, Missouri 63103 USA

Voice: 314-977-3494
FAX: 314-977-3658

Email: maydenrl@slu.edu
Webpage: http://bio.slu.edu/mayden/home.html


General Interests: Cypriniform fishes are some of the most challenging taxonomic groups for revisionary studies, largely because of their sheer diversity and the existence of so many species that "look alike." My research efforts with Cypriniformes has attempted to change this perception of this group of fishes. I have examined these fishes for a variety of topics, including systematics, taxonomy, and biogeography, speciation and rates of evolution, and ecology, both autecology and synecology. I have used a wide variety of morphological-types of characters and both mtDNA and nDNA to reconstruct phylogenetic relationships of species, genera, and higher taxa, as well as describe new species. Most of my research has focused on Leuciscine species within Cyprinidae, especially those from North America, and species of Catostomidae.

Taxa: Recent and Fossil species; Families Catostomidae, Cyprinidae (subfamilies Leuciscine, Danioninae), Balatoridae
Character Types: Osteology, myology, mtDNA, nDNA, behavior
Target Continents: North America, Central Asia, Southeast Asia