Ptocasius weyersi 
Puerto Rican Pinktoe Tarantula 
Purple Pinktoe Tarantula 
Purseweb spider 
Pystira ephippigera 
Rabid Wolf Spider 
Raft spider 
Red and black Spider 
Red and Silver Dewdrop Spider 
Red House Spider 
Red tent spider 
Red-backed jumping spider 
Red-bellied Jumping Spider 
Red-bellied Long-jawed Spider 
Red-headed mouse spider 
Red-legged golden orb-weaver spider 
Red-legged golden orb-web spider 
Red-spotted marsh spider 
Red-tipped Crab Spider 
Redback spider 
Regal Jumping Spider 
Rhene albigera 
Rhene rubrigera 
Rhitymna pinangensis