394 Hentz's Descriptions of the 



2. CTENUS PUNCTULATUS. 

 Plate XIX. Fia:. 5, 6. 



'3' 



Description, Yellowish rufous ; cephalothorax, with two 

 longitudinal blackish lines and two fainter scalloped ones on 

 each side ; abdomen wnth two subobsolete lines of minute 

 white dots, becoming more distinct towards the apex, where 

 may be seen a few irregularly placed white dots on the out- 

 side of the lines, same color unspotted beneath ; feet, a. i. ^Tl^ 



or 4. 1. 3. 2. 



Observations. This spider was found at the foot of a tree 

 in a moist place near a mountain stream, running through a 

 forest. 



Habitat. Alabama. August, September. 



Genus. Dolomedes. Latr. 



Characters. Cheliceres moderately large ; maxillcd short, 

 parallel, somewhat wider above the insertion of the palpi ; lip 

 short, suborbicnlar ; eyes eight, unequal, in two rows, the ante- 

 rior one slightly curved, the posterior one wider and much curved 

 from the base towards the anterior one ; exterior eyes borne on 

 tubercles ; feet, the fourth, second, and first pair are nearly 

 equal, the third being the shortest. 



Habits. Araneides wandering after prey, making no web, 

 except during the rearing of the progeny, hiding under stones, 

 sometimes diving under water ; cocoon usually orbicular, car- 

 ried by the mother. 



Observations. The subgenus Dolomedes is the link be- 

 tween Ctemnus and Lycos a, and its characters are somewhat 

 variable. In the first tribe, (the AnBOREiE) which differ wholly 

 from the Sylvaria of VValckenaer, the arrangement of the eyes 

 is almost that of Lycosa ; and in the Ripuaria, the arrange- 

 ment of the eyes leads to Micrommata. The spiders of this 

 genus differ in their habits also ; those of the two first tribes 

 dwell on trees, or in cavities ; those of the third are found 

 near water, and run on its surface with great rapidity ; they 

 can even dive, and have recourse to this when in danger. 



