150 



similar to those of Pholcus. It does not dwell in walls, but 

 seeks dark nooks under any kind of rubbish which has been 

 long neglected, and, when disturbed, runs off with its progeny, 

 if it have any, and seeks for some darker place undisturbed by 

 the broom of the housewife. It must live on microscopic ani- 

 malcules, owing to its diminutive size, and the weakness of its 

 threads. 



Oophora meridionalis. 



[ Spennophora meridionalis Hentz] Silliman's Journal, Vol. xli, p. 116. 



PI. 17, fio-. 9. 



Description. Livid white or pale yellow above and beneath ; 

 cephalothorax with two small, angular, plumbeous spots. 



Observations. This small spider is common in dark corners 

 and obscure apartments, where it makes loose, slender webs, in 

 the manner of Pholcus. The female is always found with her 

 eggs, when she has them, carrying them in her cheliceres. 

 These eggs are not enclosed in a cocoon, but glued together in 

 a mass consisting of from ten to fifteen. 



Habitat. North Alabama. 



[?, length 2 mm.; cephalothorax .6 mm.; legs 8.7, 6.4, 5.2, 6.8. 

 Salem, Mass., Apr. 13, young in a closet; Boston, Mass., June 8, in a 

 drawer in the Museum. (Marietta, Ohio. Wm. Holden.) j. ii. e.] 



Mygale fluviatilis. 

 PI. 17, fig. 15. 



Description. Livid ; cephalothorax with a depression near 

 the middle above ; abdomen with two transverse lines near the 

 base ; third pair of legs sensibly larger, though shorter than 

 the rest. Feet 4. 1. 2. 3. 



Observations. This new species was found in the water dur- 

 ing an inundation of the Tennessee River. It has been found 

 since in its hole, deep in the ground. The tubular cavity, at 

 least a foot in depth, was supplied with a door or silken lid 

 closing the aperture. 



Habitat. Alabama. March, October. [287.] 



