392 Wisconsin Academy of Sciences^ Arts and Letters. 



Clypeus about half as wide as the middle eyes. 



^yes of the face rather unequal, forming a straightor scarcely curved line, 

 a little separated: interval of the lateral wider than that of the mid- 

 dle, and yet not more than half their diameter. Dorsal eyes as large 

 or almost as large as the lateral, a little further apart, since the sides 

 of the head diverge a little behind; quadrangle at least a quarter 

 wider than long; dorsal eyes much further from each other than 

 from the lateral borders. 



Sternum narrow, t ^ ice as long as wide. Anterior coxae almost touching, 

 their int^rrval much less wide than the lip; all the coxae longer ihau 

 wide, those of the first pair thicker and a little longer than the 

 others. 



Palpus ( S ) with the tarsus iTiucli enlarged in the form of a palette, and 

 projecting beyond the bulb on all sidf s. 



Legs of the first and second pairs oqual or almo-t equal; those of the third 

 and fourth a little shorter, equal oi almost equal. First pair very 

 robust; femur dilated and compressed; patella and tibia cylindrical, 

 equal, or tibia barely longer (M. radiata $, ); these two articulations 

 always shorter than the cephalot borax; tarsus and metatarsus more 

 slender and shorter than patella and tibia; tarsus a little shorter than 

 the metatarsus. Tarsus and metatarsus of the fourth shorter than 

 the patella and tibia. Ct^ntinuous inferior rows of tibial and meta- 

 tarsal spines; tibial spines less numerous and less regular on the pos- 

 terior pairs; usually the metatarsi of the fourth with only a terminal 

 circle of spines. 



In the Arachuidea Australiens (p. 1093) Koch has used this genus in a 

 different sense from bota Simon and Thorell, The two latter define the 

 clypeus as about half the middle eyes of the first row. Dr. Koch on the 

 contrary extends the definition t J inclule species where the middle eyes 

 are equal to the clypeus or even overhanging the falces. Judging from 

 the excellent figures which Koch gives, the spiders included in this genus 

 form a very heterogenous group. 



MENEMERUS Simon, 1869. 



Syn.'. 1848. Euoplirys C. Koch, Die Arachn., XIII, p. 300 (ad partem). 



1869. Meuemerus Sim., Monogr. d. Attid., p. 6 (16), 196 (662). 



1870. " Thorell, On Europ. Spid., I, p.214 (ad partem). 

 1870. Marpessa Id., ibid., p. 213 (ad partem). 



1876. Menemei-us Sim., Arachn. de France, III, p. 30. 



1877. " Thorell, Studi Ragni Males! e Papuani, I, p .228 



(ad partem). 



1878. -" lD„ ibid., II., p. 237 (ad partem). 



1879. " L. Koch, Arachniden Australiens, p. 1123. 



