a similar net, but places it horizontally, or slanting. The spiral thread is curly and differently put on. 



The identification of spiders offers many diffculties. The individuals often vary in color and size. 

 The males are sometimes not half the size of the females, and differ from them in color and markings. 

 The markings are often faint and differ in various moultings. The scientific distinctions are based on the 

 sexual organs; the end knob of the feelers of the male; the number of claws on their feet, all, objects 

 too minute to serve as distinctions to the every-day observer. 



The eyes and their position form the principal means of finding the families. They are differently 

 placed in each kind. Some kinds have large and small eyes, others have several protruding eyes, as if 

 raised on warts. The grouping is important, also, as some of the species have all their eyes in a close 

 bunch, or a pair, while others have them scattered far apart. 



The student must observe the eyes from full front view, and must notice whether they are placed in 

 two or three horizontal rows, also, whether these rows are straight, curved upwards, or bent downwards. 



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000 a n r 



O O O >j 9CJ 01 J * O <> 



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Attits. Lvrosa. Dnhmedcs. Agalitia. Epfira. 



Observe that in At/its the large eyes are in the lower row, while in l.vcosa the small eyes are in this 

 position. In Attus the rows curve upwards; in I.rcosa they are straight; in A.qalfiia the}' are bent down- 

 wards. The difference between Lycosa and Doloinctics is, in the first, the four large eyes form almost a 

 square; in the second, the two eyes of the upper row arc far apart. In E.peira the two eyes on each 

 side are close together. 



(7) 



