Trichomycterus davisi

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In genetics, chromosomal polymorphism is a condition where one species contains members with varying chromosome counts or shapes. Polymorphism is a general concept in biology where more than one version of a trait is present in a population. In some cases of differing counts, the difference in chromosome counts is the result of a single chromosome undergoing fission, where it splits into two smaller chromosomes, or two undergoing fusion, where two chromosomes join to form one.

Cambeva davisi es una especie de pez de la familia Trichomycteridae en el orden de los Siluriformes. Es la especie tipo del género Cambeva. ​ Morfología • Los machos pueden llegar alcanzar los 6 cm de longitud total.