Thanks, I wasn't aware. The stuff on Leone's site seemed to agree with my Turtle Taxonomy Working Group book (8th edition, 2018), but I now see that they released an 8th edition two years ago, available here:
https://iucn-tftsg.org/wp-content/uploads/crm.8.checklist.atlas_.v9.2021.e3.pdf
Testudo graeca whitei is no longer a recognized subspecies, they are now grouped in with Testudo graeca graeca.
https://www.gardenstatetortoise.com/post/recognizing-the-greek-tortoises
Where did you get this tortoise? If it is from the wild near Chlef or along the northern Algerian coast, it's...
I think your problem is that you are not pointing the sensor of the Solar meter at the light. The sensor is the little white part on top. This is what needs to be pointing at the light to get a reading. In your photo you appear to be holding it at a right angle relative to the incoming light...
This is an Eastern Hermann's tortoise.
You probably also want to delete or crop out the other preview images from your phone in the lower part of the photo.
Sweet throwback pic! I love it.
Regarding hybrids, it's possible but would be difficult to tell. This looks like a pure Moroccan to me aside from the coloration. It sure doesn't seem to be bothering him.
I doubt it. The link below has photos of similarly aged Moroccan Greeks also in the UK. The coloration on the carapace usually has more of a mix of the tan/yellow and black/brown like what is seen on the plastron. The gray spots near the middle of the carapace are likely from where he's squeezed...
This appears to be a Moroccan Greek, Testudo graeca marokkensis based on shell shape, head and other features. The shell is nearly black which is unusual, usually there is at least some yellow. Is it possibly painted or just very weathered?
It looks like some sort of open wound or other injury. Could possibly be a burn as well. Do you have anything in the enclosure that the tortoise could get such a burn? The area around it also looks swollen. I would try to clean it and watch it closely to see if the swelling increases, and...