Katria katria
| Katria katria | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Katria | ||||||||||||
| Stiassny & Sparks , 2006 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Katria katria | ||||||||||||
| ( Reinthal & Stiassny, 1997) |
Katria katria ( Syn . : Ptychochromis katria ) is a species of cichlid that is endemic to the Nosivolo River in eastern Madagascar . In this fast-flowing mountain river with a stony ground, the species inhabits regions with calmer water.
features
Katria katria is a maximum of 12.5 cm (females) or 15 cm (males) long and has a moderately high-backed body with an iridescent brownish to yellowish-gold basic color and two conspicuous, vertical black stripes on the sides of the body. In addition to the coloration, further diagnostic features of the species and genus include an increased number of vertebrae compared to ptychochromis (29 to 30 vs. 26 to 28), a slender tail stalk, the lack of a pair of anterior swim bladder chamber that extends to the neurocranium, a reduced number of Gill rake on the lower section of the first gill arch (8 to 9 vs. 8 to 12 in other Ptychochrominae). Katria differs from Ptychochromoides by having two rows of teeth (vs. one).
- Fin Formula : Dorsal XIV-XV / 9-11; Anal III / 8-9.
literature
- Reinthal & Stiassny 1997: Revision of the Madagascan genus Ptychochromoides (Teleostei: Cichlidae), with description of a new species. Ichthyological Exploration of Freshwaters, vol. 7, n. 4, p. 353-368.
- Stiassny & Sparks, 2006: Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei: Cichlidae), with the description of five new species and a diagnosis for Katria, new genus American Museum Novitates, n. 3535, p. | 1- 55
Web links
- Katria katria on Fishbase.org (English)
- photos