THE LYCOSID^ 



85 



of eyes are small and near together. The upper row is about 

 twice as long and strongly curved, and the eyes are nearly 

 equal in size and twice as large as those of the front row (figs. 

 214, 216). In Dolomedes the lower eyes are ^ about half as 

 high as the top of the head. In Ocyale they "% are lower and 

 farther apart, and the head resembles still 

 more Tibellus of the Thomisidae. Both Ocyale 

 and Dolomedes resemble this family in their flat- 

 tened body and wide thorax. 



Dolomedes sexpunctatus. — Dark 

 greenish gray or, in young 

 spiders, yellow, with a silvery 

 white line each side the whole 

 length of the body, meeting in 

 front under the eyes and reach- 

 ing back to the spinnerets (fig. 

 210). In the middle of the 

 cephalothorax is a narrow light 

 line. On the hinder half of the abdomen 

 are four pairs of small white spots, and 

 sometimes another pair near the front end. 

 On the under side the general color is 

 lighter, and there are six dark spots on 

 the sternum (fig. 211). The cephalothorax 

 is three-quarters as wide as long, but looks 

 narrower on account of the white stripes. 

 The abdomen is proportionally longer than 

 in tetiebrosus (fig. 213). The full-grown 

 female is six-tenths of an inch long, with a spread of an inch 

 and three-quarters. In winter and spring the half-grown young 

 are very common everywhere. It lives near water and runs 

 easily on it, each foot making a depression on the surface with- 

 out becoming- wet. 



Figs. 210, 211, 212. Dolo- 

 medes sexpunctatus. — 

 210, female enlarged 

 twice. 211, under side 

 of cephalothora.x. 212, 

 one of the feet, showing 

 three claws. 



