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Competition and Isolation Mechanishms in the Gambusia Affinis X. G. Heterochir Hybrid Swarm
(Texas Memorial Museum, The University of Texas at Austin, 1971-06)
Geographic Variations in Survival of Hybrids Between Etheostomatine Fishes
(Texas Memorial Museum, The University of Texas at Austin, 1967-07)
Comparative analyses of more than 500,000 darter eggs variously tested for fertility and viability from 1954 to 1965, and gathered from widely separated geographic locations, showed that darter hybrids were as viable as ...
Interactions between a bisexual fish species and its gynogenetic sexual parasite
(Texas Memorial Museum, The University of Texas at Austin, 1964-01)