Description:
Dorsal spines (total): 2; Dorsal soft rays (total):
6-8; Anal spines: 0; Anal soft rays: 33 - 43. Body
somewhat elongated with short predorsal length (25.2-29.2%
SL); a long caudal peduncle (17.2-21.8% SL); short
head length (16.1-20.1% SL); and, short mandibular
barbels (length 11.7-42.2% HL). Swim bladder 3-chambered,
extending to above anal-fin base. Dorsum dark blue
to blue-black; 3-4 lowermost principal caudal rays
white; vomerine teeth appearing as 2 joined patches
in juveniles; vomerine teeth united into quadrangular
patch, 1.5 times broader than long, not confluent
with palatine teeth patch; anal fin base elongate,
its length 3.1-3.6 times in SL; dorsal and pectoral
fin spines slender; snout blunt. Habitat:
Found in lakes and rivers. Occurs in estuaries and
lower reaches but has also been observed in the upper
reaches during the rainy season. Diet:
Species is omnivorous with a tendency to opportunism.
Etymology: The specific name polyuranodon:
poly-, many; urano-, from ouranískos, roof
of mouth; odon, from odoús, tooth, referring
to its large, square group of vomerine teeth.
Common
Name:
None
Synonyms:
Pangasius juaro, Pseudopangasius
polyuranodon
Family:
Pangasiidae
Distribution:
Asia:
Rivers of Sumatra and northern, western and southern
Borneo. Type locality: Bandjermassing,
in fluviis.
Size:
80.0cm. (32ins)
Temp:
22-28°C (71-83°F)
p.H.
6.5-7.5.
IUCN
Red List
Although
there is no detailed information on the population size
and trend of this species, it is still abundant throughout
its known distribution. While there may be localised
or regional threats, they are unlikely to affect this
species on a range-wide scale, and it is found within
several protected areas. Therefore, it is assessed as
Least Concern
(IUCN 2019).
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