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Photo: Jan Ebr & Ivana Ebrová (iNaturalist) · CC BY 4.0 (May be cropped or resized)
Rattus argentiventer
Range
Southeast Asia
Size
Total length 304–400mm; tail 140–200mm
Weight
About 97–219g
The ricefield rat is a medium-sized rat found throughout Southeast Asia, with grizzled yellow-brown and black fur, a grey belly with whiter flanks and a uniformly medium-brown tail. Total length is 304–400 mm with a tail of 140–200 mm, and the average weight is around 97–219 g. It has chisel-like incisors, and females have 12 mammae (Wikipedia, general species account).