green mantis shrimp

[kul976]

i got a new mantis shrimp.. he's completely green in color..
i thought he was a spearer.. but i hear clicking noises from
under his rock... so apparently he's a smasher.. his body
is alittle more elongated then that of a odontodactylus scyllarus..
his eye stalks are a big longer and his tail is more fanned out..
can anyone help me with an ID on this mantis... the owner
found him in the live rock at my LFS.. i believe it's fiji rock..

 

[Gonodactylus]

WIthout a picture, this is tough. Do the eyes have kind of a checkerboard appearence?

Roy