4848 x 3460 px | 41 x 29,3 cm | 16,2 x 11,5 inches | 300dpi
Data acquisizione:
25 gennaio 2021
Ubicazione:
India
Altre informazioni:
This 'species' is not known in the wild; at least, not with any certainty. It may come from Thailand as some people say but, on the other hand; it may be no more than a mutant type of B. rerio or B.nigrofasciatus. Very recent evidence obtained by the British aquarist, Dr George Cust, indicates in the strongest possible way that B. frankei is indeed a mutant strain of B. rerio, the Zebra Danio. Genetic ratios of 3 rerio: 1 frankei obtained from interbreeding hybrids in the second generation provide pretty conclusive evidence. It is likely, therefore, that the name B.frankei will cease to be regarded as a valid scientific name in due course. A long-finned variety of Leopard Danio is now also available.
