This pet seems to be missing from the zone data for Nazjatar. It's in a cave, which means using the actual map coordinates may be a bit weird, but an entry for the entrance to the cave might be useful (/way Nazjatar 42.4, 13.2).

Actual observed coords:

• Chitterspine Grotto 62.28, 51.66
• Chitterspine Grotto 49.01, 35.07

You can see the whole cave in pet tracking, so I probably wouldn't bother with more than that.

https://www.wowhead.com/npc=154708/hissing-chitterspine

I do wonder why Wowhead doesn't have any data on the location of the pet.
It's been a while since I captued that pet - so please correct me if I'm wrong.
The pet has it's own cave, with it's own map? (Since all pet data is stored in pet->mapid->coordinates)

It's probably because it isn't on the overland map. The cave isn't just for this pet; there's another (more common) pet that also spawns in there, plus a bunch of mobs and a rare.

Next time I'm over there I'll snap a couple screenshots.

See attached

A couple spawn locations I captured

There is another spot or two a bit northwest, I think.

Want me to try my hand at an update to Modules/Data/Source/PetData.json for it?

If you are interested, #25 looks pretty good to me.

Thanks, I will take a look at it when I get home from work 🙂

Today has been quiet busy, so it will have to wait until tomorrow :)

No rush

I managed to get time to get it merged 🙂