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John E. Cooper, Egg, Larval and Juvenile Development of Longnose Dace, Rhinichthys cataractae, and River Chub, Nocomis micropogon, with Notes on Their Hybridization, Copeia, Vol. 1980, No. 3 (Sep. 6, 1980), pp. 469-478
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John Cooper (1980) studied this question.
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