Varanus varius

4 Lace Monitor at Gundaroo, NSW

Varanus varius at Gundaroo, NSW - 4 Dec 2020
Varanus varius at Gundaroo, NSW - 4 Dec 2020
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Identification history

Varanus varius 5 Dec 2020 DonFletcher
Varanus varius 4 Dec 2020 wombey
Varanus rosenbergi 4 Dec 2020 SwalaPark

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4 comments

wombey wrote:
   4 Dec 2020
I think this is varius, happy for someone else to confirm
DonFletcher wrote:
   5 Dec 2020
Hi Swala Park, Broad marking on lips and tail (and ready use of tree) would be why John ('wombey') called this as a Tree Goanna (aka Lace Monitor, Varanus varius) rather than the other local species, Rosenberg's Goanna, which is reported more often on CNM.
Timing is much earlier in the season than the nest digging by local Rosenberg's Goannas. Because of the leaves, I can't tell from the image if this goanna looks gravid. Did (she?) return to complete the hole, lay her eggs and partly backfill the hole? Was this a cannibal, excavating the young of another goanna? If there is further evidence, I'd be interested to hear - don.fletcher@emailme.com.au
SwalaPark wrote:
   7 Dec 2020
Has not returned since I disturbed it. Did not appear to have eggs in the excavation and the white ants have since filled it in. Has been in the vicinity for the past couple of weeks as evidenced by upsetting the local magpies and cockatoos!
DonFletcher wrote:
   7 Dec 2020
At nesting time gravid female Rosenberg's Goannas can dig several test holes in different mounds before the final one in which they lay. Final hole typically 0.5 -0.7 m deep down into the soft central 'carton' of the termite mound. Probably Tree Goannas are the same in this respect. Some females wait inconspicuously nearby for a few more weeks to guard the nest from cannibal goannas. If you see any of that I would love to hear don.fletcher@emailme.com.au

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Location information

Sighting information

Additional information

  • Nest building Breeding behaviour
  • Female Gender

Species information

  • Varanus varius Scientific name
  • Lace Monitor Common name
  • Sensitive
  • Rare or uncommon native
  • Non-invasive or negligible
  • 346 images trained Machine learning

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  • More than one media file
  • Verified by an expert moderator
  • Nearby sighting(s) of same species
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  • Additional attributes
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