Barrow Dragons is a race of lesser dragons, nearly as small as wyverns or about the size of two oxen, that most often make their abode within dark and dry subterranean lairs.
I know basilisks are immune to the gaze of other basilisks, but imagine if they weren't. Like the panda they would become ecologically unviable and endangered...
There are two large stones on the thinly wooded hillside above Tiringan. It is said that two basilisks surprised each other many years ago and fell in love at first sight. They also turned to stone at first sight. A local legend of star-crossed lizards: very moving.