Cain decides that a full clear can wait for another day, today the only important part is to get a solid upgrade for Nemu. So, with that in mind, they head back towards the area with most of the Cat folk.
There's nothing in the Summon description that says she needs to be a cat, but Cain is getting used to her antics at this point, and a Lizard or Dog type Nemu would be a big change. It's a bit more difficult to find new species now, they cleared the area out pretty well, but they're so close that none of them wants to move on and on for new targets.
"One more form, start looking for a good target." Cain finally calls out two hours later, having just recorded a Jaguar pattern Huntsman.