Is this embryo dead? Your thoughts.

[Midlandtortoise]

Hi guys As some of you will be aware I've had a few eggs recently and I've left them alone in the incubator. One of the first few eggs I candelled without lifting the egg I could see movement but it's day 43 but I cannot see anything. I feel the development has stopped and I fear the tortoise is dead inside. I've got the eggs at 31 degrees and humidity of 80% The other eggs appear fine and are at different stages. Im a bit nervous as these are my 1st eggs. I've attached picture for your opinions.

[IMG][/IMG]