Notes Relative to the Species of Gambusia in the United States
1923; University of Notre Dame; Volume: 8; Issue: 8/9 Linguagem: Inglês
10.2307/2993077
ISSN1938-4238
Autores Tópico(s)Fish Ecology and Management Studies
ResumoREGAN ('13) in his revisional paper on the viviparous Poediliidae or top-minnows of the world has ascribed to the territorial limits of the United States three of the genus Gambusia; holbrooki, patruelis, and affinis. He maintains that Gambusia holbrooki (Grd.) Guenth. is distributed from Virginia to Alabama; G. patruelis (B. & G.) Grd. from 'Florida to Texas; and G. affinis (B. & G.) Grd. from Florida to Tampico; Mississippi. Owing to the rarity of males in field-collections of Poeciliidae, he had no males of some of the different species for comparison; and hence the descriptions which he gives of the different species do not appear toS really satisfactorily differentiate them from other Color-markings, for example, mray vary widely; the ground-color, also may differ markedfy in the different habitats. The characters which he used in differentiating species, in fine, vary so greatly that it is impossible to clearly discriminate between his species. As a result of this, and in view of the remarkable diversity in the form and the color of Gambusia contemporary workers
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