The baboon spider Pterinochilus murinus, an old-world tarantula, was first described in 1897. This species is found on the African continent, in Angola, as well as central, eastern, and southern Africa. This species is incredibly defensive and should not be held. The bite of this species, while not serious, is extremely painful (a bite more painful than that of a rattlesnake). Moreover, the species is more than willing to inflict such a bite before presenting the typical threat display. Caution when dealing with this species is advised. Female P. murinus can grow to 4-6 inches in size (measured from the tip of the front left leg, to the rear right leg), while males typically range from 3-4 inches. These spiders are not common in pet stores but are very popular in the pet trade. They need a 5 to 10-gallon tank. These spiders build a tunnel shaped web and need 10 to 20 cm of bedding. Feed them crickets, cockroaches, and grasshoppers.