[ Disclaimer, --- , ]
Hp listed is incorrect.
With some variance, these have ~2600hp. The lowest I found had ~2407hp (3x 650 point nukes brought it to 19%); the highest had ~2888hp (4x 650 point nukes brought it to 10%).
Additionally, they have a special called manticore poison (details unknown) and in general they hit harder than what's listed. They sting and bash, and the stings have been as high as 108 against my 56 Cleric (774 AC).
Most were green but exp to a 56, a couple were blue.