Collett's snakes have a subcataneous LD-50 of 2.38, making them ever so slightly less toxic than a Redbellied Black Snake.
Hey!!! It's not fat! They do tend to look a tad chubbier (if that's a word) due to them not having a really noticeable neck like pythons. That snake is about 4.5ft long and a tad fatter than a 50c piece.
Cheers,
Austy.