Channa aurantimaculata
| Channa aurantimaculata | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Channa aurantimaculata |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Channa aurantimaculata | ||||||||||||
| Musikasinthorn , 2000 |
Channa aurantimaculata ( Latin : "aurantium" = orange, "maculatus" = spot) is a species of snakehead fish (Channidae)from northeastern India. The four paratypes for the first description of the species that was only newly described in 2000 come from the Brahmaputra run in eastern Assam .
features
The body of Channa aurantimaculata is dark brown in color, with seven to eight orange-gold vertical stripes and a few irregular spots. The pectoral fins are patterned by five vertical black bands. The base of the fin is also black. The body is elongated, relatively slender and in cross-section in the front body approximately round, the rear body is flattened on the sides. The body height is highest at the base of the dorsal fin, the widest point is at the base of the pectoral fin. Channa aurantimaculata has 50 to 52 vertebrae (45-48 + 4 or 5). The head is long (31 to 32.8% of the standard length ), the muzzle broad and rounded at the front. The length of the mouth is 44.6 to 45.9% of the length of the head and the maxillary reaches behind the rear edge of the eye.
The premaxillary is occupied in the first row with numerous, conical small teeth, a second row of teeth with larger teeth is behind it. More small conical teeth and three larger ones sit on the front ploughshare . The palatine bone is covered with a number of teeth of different sizes, including 7 or 8 large fangs. In the lower jaw there are small to medium-sized teeth, as well as 5 or 6 large fangs. There are two characteristic large scales on each side of the lower jaw. The head is flat between the eyes. Viewed from the side, the upper edge of the eye does not touch the line of the back.
The dorsal and anal fins are very long and reach 65 to 67.5 and 40.1 to 41.8% of the standard length, respectively. The pelvic fins are less than half as long as the pectoral fins and only reach 7.6 to 8.5% of the standard length. The pectoral fins and the caudal fin are rounded.
- Fin formula : dorsal 45-47, anal 28-30, pectoral 15-16, ventral 6, caudal 14.
- Dandruff Formula : 4.5-5.5 / 51-54 / 11-12; / 25-28; 8-12 rows of scales on the throat; Dorsal scales 13-15.
The species grows up to 40 cm.
literature
- Musikasinthorn, Prachya: Channa aurantimaculata, a new channid fish from Assam (Brahmaputra River basin), India, with designation of a neotype for C. amphibeus (McClelland, 1845) . In: Ichthyological Research . 47, No. 1, 2000, pp. 27-29.
Web links
- Channa aurantimaculata on Fishbase.org (English)
- Channa aurantimaculata inthe IUCN 2013 Red List of Threatened Species . Posted by: Chaudhry, S., 2010. Retrieved January 25, 2014.