Eidolon with Reach and Longspear

[Krinn]

What's the reach of a humanoid Eidolon with the reach (claw) evolution and armed with a longspear? And which squares would it threaten?
Thank you :)

[Leisner]

There's no humanoid eidolon, there is a biped eidolon. It isn't strictly the same thing.
Assuming that the claws are not on the hands used to wield a long spear, the eidolon, assuming it is medium sized, would take up 1 square, threaten the squares around it with its claw (5ft), and threaten 10ft with both long spear and claw.
Do note that you need the reach evolution for each attack, and if you grow large, as per the large evolution, the biped will get a 10ft reach on all its attacks.

[Celanian]

You need to take the reach evolution on the longspear if you want increased reach. It's very specific that it applies to one single attack. Reach claw wouldn't even apply to spiked gauntlets on the same hand since it's a different attack.

If you did take it on the longspear, you would be able to attack from 10 or 15' away assuming nothing else funky such as enlarge person or some other size alteration effect.

[Krinn]

Thanks for the replies!
Yeah, I meant biped eidolon :)

[Deadmoon]

A medium biped eidolon with a longspear has a reach of 10' and threatens squares 10' away with the longspear and 5' away with claws.
A medium biped eidolon with reach (claw) has a reach of 10' and threatens squares 5' and 10' away with claws.
A medium biped eidolon with a longspear and reach (claw) has a reach of 10' and threatens squares 10' away with the longspear, and squares 5' and 10' away with claws.