Will someone please help?

Hey everyone😊 i was wondering where a few monsters were, so if anyone could respond that would be great. First off i was wondering where steggy, seabite, tinder, and thick skull were so if you could answer that would be great!

http://www.hunterislandforum.com/index.php/topic/322-lachzeers-location-guide-to-catching-rare-arkadions/ <- There you’ll find stegy, seabite, tinder & thick skull.