Niviventer – help wanted with identification

Niviventersmall Niviventer4small Niviventer2small Niviventer3small

Hi can anyone help with this niviventer – presuming I’ve got that bit of the id correct? It was photographed in mangroves not far west of Bangkok. Apologies for the poor photos.

Cheers

Steve

6 Comments
  1. Profile photo of Vladimir Dinets
    Vladimir Dinets 11 months ago

    Seem to be only two Niviventer species there: N. tenaster and N. fulvescens. The former generally fits although it’s supposed to have an orangish line on the flank; the latter is usually yellowish or reddish brown with bicolored tail. But why do you think it’s a Niviventer and not a Rattus?

  2. Author
    Steve Babbs 11 months ago

    Simply because it didn’t seem ‘quite right’ for a Rattus and because it looked quite good for a Niviventer in the Francis guide but I have no experience for Niviventers and I am more than happy to be corrected.

  3. Profile photo of Vladimir Dinets
    Vladimir Dinets 11 months ago

    What size was it?

  4. Profile photo of stevebabbs Author
    stevebabbs 11 months ago

    It’s hard to say but compared to brown rat – the only Rattus that I see regularly – probably about the size of a small one.

  5. Profile photo of Vladimir Dinets
    Vladimir Dinets 11 months ago

    I’d say Rattus tanezumi or R. losea, depending on tail length (longer than head+body in the latter).

  6. Profile photo of stevebabbs Author
    stevebabbs 11 months ago

    Many thanks for your help Vladimir.

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