im not sure the aquabid list matches all of the pictures you posted. there are some amazing species shown in the pics that are not listed on aquabid. i am very interested in the softshell turtles.
The dark gar is a melanistic (black) Florida Gar. It is not for sale. John occasionally catches them and they are almost always eyeless. Note the missing eyes on that one.
That particular specimen is John's last one and he is keeping it in one of his home tanks. He posted the picture just to show off how cool it is.