SCORPIONS, SPIDERS, ETC. 297 



Family 2 : Scorpionidce. Sternum pentagonal (Fig. 130). 

 No tibial spurs. Protarsi with only one pedal spur. The 

 claws of the legs lie in a cleft formed by the projecting ends 

 of the sides of the tarsus. Lateral eyes, two or three on each 

 side. Nearly half the remaining species of scorpions belong 

 to this family, which is represented in all warm parts of the 

 world except Southern Europe.- 



Family 3 : Ischnuridce. Differs from the Scorpionidce 

 only in having the body and pedipalps flat and depressed, 

 the tail slender and compressed, and the claws of the legs 

 not pverlapped by the sides of the tarsus. A small family 

 of about twenty-four species, found in Africa, Southern Asia, 

 Australia, and (one species only) in Tropical America. 



Family 4 : Chcerilidce. Sternum pentagonal, with a 

 median furrow ending in a pit. No tibial spurs. Protarsi 

 with two pedal spurs. Claws of the legs not overlapped by 

 the sides of the tarsus. Lateral eyes, two (with a yellow 

 glistening spot behind them) on each side. Stigmata 

 circular. About ten species, found only in the Oriental 

 Region. 



Family 5 : Chactidce. Sternum pentagonal, generally 

 as broad as long. No tibial spurs. Protarsi with two 

 pedal spurs. Claws of legs not overlapped. Lateral eyes, 

 two on each side, but sometimes there are no eyes at 

 all. Stigmata often circular. Between twenty and thirty 

 species, in Tropical America and the countries bordering the 

 Mediterranean Sea. 



Family 6 : Vejovidce. Sternum pentagonal, generally 

 broader than long, with a deep median furrow. No tibial 

 spurs. Protarsi with two pedal spurs. Lateral eyes, three 

 on each side. Stigmata long and narrow. About twenty 

 species, in South Europe, North Africa, South Asia, and 

 America. 



Family 7 : BothriuridcB. The sternum consists of a 

 narrow transverse rod divided in the middle line, and is 

 sometimes hardly distinguishable. About twelve species, of 

 which one is Australian and all the others are South 

 American. 



