'298 Wisconsin Academy of Sciences, Arts and Letters. 



■Spinnerets ordinary: the second joint of the superior, wider than long, 



and obtuse. 

 Type: Z. d'Urvillei (Walck.). 



EURYATTUS Thorell. 1881. 



Euryattus Thorell, Scudi sui Ragni Malesi e Papuani III, p. 660. 



•Cephalothorax short, dilated anteriorly, not high. 



Clypeus very low, not i of the diameter of the middle eyes. 



^yes small; quadrangle very short, about twice as wide as long, and a 

 litt'e Wider behiud than in front. The anterior row usually curved 

 upward, the middle eyes wid ly separated the lateral eyes separated 

 from the middle eyes by their own diameter; eyes of the second 

 row a little further from the posterior eyes than from the anterior 

 lateral eyes; the posterior eyes are placed much higher than the 

 lateral anterior eyes, and are as far or farther from eacli oiher as 

 from the lateral borders. 



Sternum not much wider than the coxae, not projecting between the 

 coxae of the first piir. 



Falces ordinary, sub-vertical. 



Maxillae parallel, sub-ovate; lip longer than wide, rather widely trun- 

 cated at the apex. 



Legs those of the first pair longer than the others; the third pair not 

 much longer than the fourth; tibia with the patella of the third 

 longer than tibia with patella of the fourth. The tibiae have spines 

 above; the posterior metatarsi have spines throughout their length. 



■Abdomen sub-ovate. 



Spinnerets: ordinary, the second joint of the superior one being the 

 shortest. 



T2/j)e: E. porcellus(Thor.). 



By the greater space, says Thorell, between the anterior middle and 



lateral eyes and by the line which touches the upper borders of the 



first row of eyes being straight and by the lowaess of the clypeus this 



:genus is easily distinguished from Ephippus Thorell. 



PHIDIPPUS C. Koch. 1846. 



Syn.: 1846. Phidippus C. Koch, Die Arachn., 13, p. 125. 



1850. " Id., Uebers. d. Arachn. -Syst., 5, p. 53. 



1864. Crytonota (sub. -gen. Phidippus) Sim., H. M. d. Araignees, 

 p. 324 {ad partem). 



1877. Phidippus Thorell, On Ara-.eae of Colorado, Bull. U. S. 



1878. " Tacz , Les Araneides de Perou, Bull. de. la. So- 



cle te Imperiale des Naturalistes de Moscou, 

 LIII, 4, p. 333. 



