I'd assume that too. I doubt they get any bigger than that, nor smaller.I think around 6"-7" iirc.
The only ones that get close to that are rufilata and ornata maybe an exceptionally large regalis.others says it can reach about 9-10 inches?? i don't know if it true
Not sure, I don't have a smithi but most of em range 6-8" with the larger exceptions mentioned beforewhich is bigger p.metallica or p.smithi