[Ranylyn]

Delvers do not have heads, according to headshot. However, Sand Sharks, by comparison, do.

Is this intentional?

Also, by extention, Jammer Deltas (and possibly Gammas) look like they have a head-like thing, but can't be headshot. I'm assuming this is intended, but I thought I'd bring it up at the same time just in case.

[Neus]

Delvers have been corrected.

Deltas do not have anything special in their head that you could headshot, no, so that one is intended.