: They're said to be the Covenant Fringe, but the description implies them to
: be just a very small race located only on a single moon. They seem to kind
: of just show up after battles and take some materials, and sometimes the
: Sangheili and other races use them as a labor force, but they aren't part
: of the Covenant proper and thus aren't used in the military. The books
: have implied other species out there, and it's not far-fetched to believe
: that some might be a tad bit more humanoid. I mean, Brutes are just big
: gorillas.

To quote a sage over on the Waypoint forums:

Well, in the realm of bug people, sentient clumps of worms, computer gas bags and dinosaur samuaris...human-looking fish person is kind phoning it in.

-DecepticonCobra

If they're really going to be humanoid aliens, I want to see more than just makeup on the head and hands. Mess with the proportions a little bit. Give them longer arms. Give them bulkier torsos like the Turians. Put them on digitigrade stilts.