Fig 1
Fig 2
Fig 3
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Family : RANIDAE
Species : Hylarana nigrovittata
Size (snout to vent) :
Female 6.0 cm, Male 5.5 cm
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The distinctly patterned
Black-striped Frog inhabits the mainly drier lowland forests of continental
Asia, and has adapted well to disturbed areas. It is commonly found by the
banks of small rivers, streams and pools, including man-made ponds. The
species is less commonly found in the interior of moist rainforest.
The species exhibits the typical shape of the Ranidae family (i.e. 'typical
frogs'). It has a slender body, pointed snout, moderately large eyes, long
hind legs and prominent external ear-drums.
It is easily identified by the broad dark stripe which runs
along each flank from the tip of the snout, through the eye to the base of
the hind leg. The dorsal surface is medium brown, sometimes mottled, and the
lower flank and belly are creamy yellow to white. The hind legs are
patterned with dark, irregular bars or are mottled.
The Black-striped Frog is widespread in the region, ranging from parts of
eastern India (e.g. Assam) and Myanmar, through Thailand and Indochina
(including parts of southern China) to more northerly parts of Peninsular
Malaysia. It is likely that this is a species complex, which further study
will subdivide into separate species.
Figs 1 and 2 : Typical specimens with thick, dark stripe along the flanks.
Seen at Pulau Banding, Temenggor
Lake, northern Peninsular Malaysia.
Fig 3 : This pair of frogs from Khao Yai National Park, central Thailand
(approximate elevation of 1000 metres) probably belong to the Black-striped
Frog complex, though the dark stripe is less developed than in typical
specimens.
References : H3
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