Environmental Engineering Reference
In-Depth Information
Myanmar
(misidentifi cation) and Thailand
Body small; rosette of cephalic shields circular,
postorbital touching basal, consisting of a median
shield surrounded by six marginals, frontal shield
touching single inter-nasal anteriorly and the rosette
posteriorly; dorsal fi n long, low, inserted slightly
ahead of the pelvics; pectoral fi ns fan-like, extend-
ing to anal fi n; pelvic fi ns short; anal fi n also long,
low, inserted under about the 13th dorsal ray; caudal
fan-like; lateral line, curving down after about the
12-14th scale. Body above and on lateral greenish
grey, ventral side pale with a blush of pink; a row
each of dark bands above and below the lateral line;
dorsal, anal and caudal fi ns dark, edged with orange;
pectoral fi n with 5-7 dark-grey vertical bands.
(doubtful).
Habitat and Ecology
Occurs solitarily in rivers, ponds, swamps and
ditches. Feeds on worms, crustaceans and insects.
Conservation Status
IUCN Red List, least concern.
Remarks
Of no fi shery interest; aquarium. It is used for
aquarium purposes.
Family: Channidae
Genus:
Channa
Scopoli, 1777
Maximum Length
20.0 cm (standard length).
36.
Channa gachua
(Hamilton, 1822)
Ophicephalus gachua
Hamilton, 1822.
Fish.
Ganges
: 68, 367, pl. 21, fi g. 21. (type locality:
ponds and ditches of Bengal).
Ophiocephalus gachua
Husain,
2003
.
Faun. Asan
Wetland, Wetland Ecosystem Series 5
: 23-26
(Asan reservoir, seepage nala, Asan River
above Kunja Grant and below its barrage).
Distribution
Uttarakhand
Garhwal Division: Chamoli, Dehradun,
Haridwar, Pauri and Tehri districts; Kumaon
Division: Almora, Nainital, Pithoragarh and
Udham Singh Nagar districts. Corbett Tiger
Reserve and Rajaji National Park.
English Names
Asiatic Snakehead, Dwarf Snakehead.
India
Throughout. Andaman and Nicobar Islands and
Maharashtra.
Local Names
Dawla, Dorrah
Localities Surveyed
Asan River above Kunja Grant, below barrage, at
Dhalipur; Herbertpur, Sabhawala, Sahaspur,
Jhajra; stream near Asan Barrage at Dhalipur;
seepage nala below barrage; Asan reservoir.
Swarna nadi, Bhauwala; stream at culvert No.
28/2, Ridapur near Sahaspur; Naugaon nala at
village Naugaon near Bhauwala; pond on Langha
road; Naro nadi at Bhurgaon near Bansiwala via
Jhajra; Kalughat khala near village Doonga;
Nimi nadi, Paundha; Nun nadi, Jaintanwala; Tons
nadi, Robber's cave; Birhani nadi near Panditwari.
Small stream at Karwapani, Asarori forest.
Elsewhere
Afghanistan, Bangladesh, Bhutan, Cambodia,
China, Indonesia, Iran, Laos, Malaysia, Myanmar,
Pakistan, Singapore, Sri Lanka, Thailand and
Vietnam.
Nepal and Taiwan (doubtful).
Habitat and Ecology
Found in hill streams, adults inhabit medium to
large rivers, rapid-running mountain streams and
stagnant water bodies including sluggish-fl owing
canals. Feed at night on small fi sh, insects and
crustaceans. Exhibit parental care, with the male
breeding eggs and fry in his mouth.
Diagnostic Characters
D. 0/ 34-36, P. 0/15-17, V. 1/5, A. 0/21-22, C.
13-14, L.l. 40-50.
Conservation Status
IUCN Red List, least concern.
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