Tag Archives: melanostichos

Hyphessobrycon melanostichos

16. February 2022

At the moment we can offer magnificent, fully grown bred specimens of Hyphessobrycon melanostichos.

Hyphessobrycon melanostichos is very eye-catching due to its bright sky-blue back coloration. The species was scientifically described in 2006 from the Brazilian state of Mato Grosso, where it occurs in the upper drainage of the Rio Tapajós. The species is distinguished from all other Hyphessobrycon species by the combination of the following features: a broad, black longitudinal band that begins at the posterior margin of the eye and extends to the posterior margin of the caudal fin; an oval shoulder spot; 16-18 soft fin rays in the anal fin.

It is very interesting that in this fish, similar to Hemigrammus coeruleus, the males develop a distinctly different coloration during courtship; many thanks to Peter & Martin Hoffmann for providing us with the picture of a courtship active male. Such changes in coloration are unusual in tetras of the Hemigrammus-Hyphessobrycon group, usually the colors intensify only insignificantly during courtship.

For our customers: H. melanostichos has code 261834 on our stock list. Please note that we only supply to wholesalers.

Text: Frank Schäfer, Photos: Frank Schäfer, Peter & Martin Hoffmann

Literature: 

Carvalho, T. P. and V. A. Bertaco (2006): Two new species of Hyphessobrycon (Teleostei: Characidae) from upper rio Tapajós basin on Chapada dos Parecis, central Brazil. Neotropical Ichthyology v. 4 (no. 3): 301-308.

Hyphessobrycon melanostichos

28. April 2017

In our latest newsletter I made a regattable mistake: I used pictures of Hyphessobrycon cf. melanostichos instead of pictures of the „real“ Hyphessobrycon melanostichos in the post; H. cf. melanostichos differs a lot from the „real“ species in life colours. So here are now pictures of the „real“ H. melanostichos, the fish we currently have in stock. It is very interesting that in tis species the male changes a lot in coloration, as we have seen it in Hemigrammus coeruleus. This is very unusual in species of the Hemigrammus-Hyphessobrycon-relationship, in which the males usually only get a bit brighter coloration during courtship.

Hyphessobrycon melanostichos has a striking bright skyblue dorsal coloration. The species has been described scientifically in 2006 from the state of Mato Grosso in Brazil; here H. melanostichos is found in the upper reaches of the Rio Tapajós basin. The species is distinguished from all other species of Hyphessobrycon by the comobination of the following characters: „a conspicuous longitudinal broad black band, beginning on the posterior margin of orbit and reaching the distal tip of middle caudal fin rays; humeral spot vertically elongate and distinct from lateral band; and 16 to 18 branched anal-fin rays.“ (Carvalho & Bertaco, 2006)

The coloration (of preserved fish) is the same in Hyphessobrycon cf. melanostichos, but this form has 19 branched anal fin rays. Moreover in the original description of H. melanostichos a freshly preserved male is illustrated, obviously a breeding animal. The coloration of this specimen fits perfectly to the one of the mating male we can illustrate here (it is one of the parents of the fish we currently have in stock). So we have no doubt anymore that we now have the „real“ Hyphessobrycon melanostichos in stock, while the status of the H. cf. melanostichos remains the subject of further investigations.

For our customers: the „real“ Hyphessobrycon melanostichos has code 261832 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text: Frank Schäfer, photos: Frank Schäfer, Peter & Martin Hoffmann

Literature: 

Carvalho, T. P. and V. A. Bertaco (2006): Two new species of Hyphessobrycon (Teleostei: Characidae) from upper rio Tapajós basin on Chapada dos Parecis, central Brazil. Neotropical Ichthyology v. 4 (no. 3): 301-308.

Tetras: top rarities, German bred

27. April 2017

We obtained from our proofed breeder three species of tetra which are hardly – if ever – available in the trade, all German bred. Hyphessobrycon melanostichos, H. nigricinctus, and Hemigrammus coeruleus. Especially H. coeruleus is now available in larger numbers (yippieh!), the remaining two species are only in small numbers in our stock.

For our customers: H. melanostichos has code 261832, H. nigricinctus 261463, and H. coeruleus 256322 on our stocklist. Please note that we supply exclusively the wholesale trade.

Text: Frank Schäfer Photos: Frank Schäfer & Peter Hoffmann