Description:
Glyptothorax is distinguished from all other
sisorid genera by having an adhesive apparatus on
the thorax with with grooves parallel or oblique to
the longitudinal axis of the body (vs. thoracic adhesive
grooves transverse to the longitudinal axis of the
body in Pseudecheneis, and thoracic adhesive
apparatus absent in all other genera). Habitat:
Adults inhabit flowing waters of small and medium-sized
streams. Found over coarse substrates and in small
upland streams with alternating pools, waterfalls
and rapids. Colouration: G. laosensis
has a blackish body; a yellowish stripe along the
middle of the side and one along the dorsal mid-line;
head and body smooth, covered by small tubercles,
all more or less of same size; usually a black bar
or almost entirely black on anal fin. Diet:
Feeds on aquatic insect larvae. Etymology:
The specific name laosensis: –ensis,
Latin suffix denoting place: Laos (which Fowler defined
as “Siam,” now Thailand), where type locality
(Bua Yai, Mekong River drainage) is situated, but
also occurs in Laos (and China).
Common
Name:
None
Synonyms:
None
Family:
Sisoridae
Distribution:
Asia: Chao
Phraya and Mekong drainages, China, Laos and Thailand.
Type Locality: Bua Yai [Mekong drainage],
E. Thailand.
Size:
11.0cm. (4¼ins)
Temp:
18-23°c (63-73°f.)
p.H.
6.0-7.0.
IUCN
Red List
The
species has a wide distribution and is considered Least
Concern, but does need updating, (IUCN
2012).
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