Description:Dorsal spines (total): 1; Dorsal soft rays
(total): 7; Anal soft rays: 39 - 46. Abdomen with
a well-developed median keel extending from throat
to origin of anal fin. Dorsal fin advanced in position,
with a strongly serrated spine; pectoral spines as
long as or slightly longer than dorsal spine, strong,
denticulated along their inner edge; pelvic fins small;
anal fin low, long; adipose fin very small. Single,
oval-shaped patch of teeth on each side of palate;
eye large. Habitat: Occur in large
and medium-sized rivers. Found in rapids and in deeper
slower reaches. Common in the middle Mekong before
the flood season where it is found in the lower reaches
of tributary streams along with most of the cyprinids
that would be found in the main stream of the Mekong
when the water is clear. Diet: Feeds
on terrestrial and aquatic insects along with small
amounts of plant matter.
Pseudolais
pleurotaenia
Nung River near Vientiane, Laos.
Pseudolais
pleurotaenia
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