ARANEIDA PIIALA>"GIIDA. 



505 



in two transverse rows, and long anterior legs. They construct irregular webs, 

 the threads of which cross one another in all directions, and live on their 

 webs. Ther/dhim shypMum Clerck., Pholciu phalangioides Walck. 



Fam. Orbitelae. Wheel spinners. Head and thorax separated by a furrow ; 

 abdomen swollen to a globular form. The eight eyes are arranged rather 

 irregularly in two rows, and the anterior legs are longer than the following legs. 

 The legs of the third pair are the shortest. They spin perpendicularly hanging 

 wheel-shaped webs with concentric and radial threads, and lie in wait in the 

 middle point or in a remote hiding-place, which they surround with a web. 

 JSfcira diadema L., cross spider*. 



FIG. 407. Phalanjium ojtllio $ (rormtfum) (regne anim.il). 



FIG. ^S. Male and female generative orpnns of Phalangium, ojiilio (after Kroh;:). T, 

 Testis ; Vd, vasa deferentia ; P, penis with accessory glands ; 11, retractor muscles ; Or, 

 ovary ; U, uterus ; Of, ovipositor. 



Order 4. PHALANGIIDA. * 



Arachnida with four 2)(tirs of long, slender legs, with chelate cJielicerce 

 and segmented abdomen joined by its ivhole breadth to the cephalo-tliorax. 

 They have no spinning glands, and breathe by tracheae. 



* Meade, " Monograph of the British species of Phalangiidse," Ann. of nat. 



