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Fig 8
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Family : DICROGLOSSIDAE
Species : Fejervarya limnocharis
Size (snout to vent) :
Females up to 6 cm, males up to 5 cm
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The Field Frog, also known
as 'Asian Grass Frog' or 'Rice Field Frog', is one of the smaller species of
the genus Fejervarya: it typically measures up to 5 cm snout-vent
length. It adapts well to disturbed habitats such as rice paddies, forest
clearings, parks, gardens and oil palm plantations.
In the field it can be
identified by its relatively pointed snout and flattened head (when compared
to closely related species such as
Fejervarya cancrivora). It has long toes on its hind legs and intermittent raised skin
ridges on its dorsal surface.
It is typically brownish, with darker blotches, sometimes with a greenish or
reddish suffusion or tinge. A pale vertebral stripe may sometimes be present:
this may be cream in colour, or sometimes greenish. Its belly is white.
Within Southeast Asia this species occurs in Myanmar, Thailand, Cambodia,
Laos, Vietnam, Peninsular Malaysia, Singapore, Sumatra, Java, Bali, Sumbawa
Borneo, Sulawesi, the Philippines. The degree to which its range extends
outside the Southeast Asia region is unclear.
It is likely that Fejervarya limnocharis represents a species
complex, and that it includes a number of cryptic species from different
geographic regions (e.g. Djong et al, 2007).
Fig 1 : Example from a roadside drain in secondary forest at Punggol,
Singapore.
Fig 2 : Example from Taman Negara, Pahang, Peninsular Malaysia.
Fig 3 : Mating pair with thick cream-buff vertebral stripes. Seen at Danum Valley,
Sabah, Borneo.
Figs 4 and 5 : Two small examples with green vertebral stripe and greenish
suffusion, from Krabi, Southern Thailand.
Fig 6 : Example from southern Johor, Peninsular Malaysia, with a reddish
suffusion.
Fig 7 : Example from Bali, Indonesia with inflated vocal sacs.
Fig 8 :
The tadpole is
mottled brown and black.
References :
Djong, T. H., Islam, M.
M., Nishioka, M., Matsui, M., Ota, H., Kuramoto, M., ... & Sumida, M.
(2007). Genetic relationships and reproductive-isolation mechanisms among
the Fejervarya limnocharis complex from Indonesia (Java) and other
Asian countries. Zoological Science, 24(4), 360-376.
Manthey U., Grossmann W., 1997. Amphibien und Reptilien Sudostasiens.
Natur und Tier - Verlag.
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