Wayne - Andre' thinks those are crawfish, I know better. Let me offer a coonass recipe for cooking those spineys.
First, turn it (yep, while it's live, sorry PETA) upside down, take a machete or meat cleaver and whack it down the middle and split it. Then make a saute' in a little sacue pan of a half stick of butter, half that of virgin oilive oil, about 2 tablespoons of crushed garlic, some sea salt to your taste, and some soy sauce to just color the saute'.
Baste the half spineys with the saute and let them sit for a half hour at room temp. Then slap them, meat down, on a hot charcoal grill for about 5 minutes, turn them over on the shell side for 2 minutes, baste them again with the saute', then back down to the fire on the meat side for another few minutes. Don't be scared to let the fire lick on them.
Then box them up, FedEx them to 2355 Drusilla Lane, Baton Rouge, LA, and I'll dispose of them properly. Some of the best seafood ever, done hot & fast with the saute'.
When I was doing Uncle's work in San Diego a lot, I used to go to the Fish Market there and sit at the bar where they cooked, had a mesquite grill, taught them the UV spiney recipe, just a slight variation of their already good one. Miss that place a lot, one of the finest restaurants in the US.
On the other hand, glad my Uncle travel is winding down after some 40 years.......airplanes and business travel are a different deal nowdays. If you don't need to be there, go by air.