76 SNODGRASS 



frequently met with on the other islands but are by no means the pre- 

 vailing types. Two individuals were found on Hood Island having 

 each an orb but no labyrinth. In each case the spider was at the 

 center of the orb on a small vertical sheet of closely spun silk. 



Males are infrequently met with ; only one was found having an orb 

 web, two were taken in labyrinths without orbs; all the other males of 

 the collection were taken from the webs of females. 



The eggs are enclosed in elongate, conical cases (PI. iii, fig. 7) 

 hung vertically in the center of the labyrinth, and often decorated on 

 the outside by bits of dried leaves. A cavity in the lower end of the co- 

 coon serves the spider as a hiding place, the original one being discarded 

 when the cocoon is formed. The interior of the cocoons (PI. iii, fig. 

 i) is divided by horizontal septa into several superimposed chambers. 

 In each is placed a spherical mass of eggs covered over with a soft 

 and rather thick covering of silk, but the entire pellet does not nearly 

 occupy all of the cell. 



EPEIRA GREGALIS. 



Found at only one place in the archipelago, viz., at Mangrove 

 Point, Narboro Island. One specimen was taken from an empty 

 basal capsule of a mangrove pod. At the side of this was a horizontal 

 orb web connected with the cavity of the capsule by a gangway of 

 threads. All the other specimens were taken from a colony of eight 

 nearly vertical orbs and numerous intersecting lines spun miscel- 

 laneously amongst the forks of a piece of dead mangrove wood lying 

 on the beach. Three of the orbs were occupied by a spider at the 

 center. Attached to the straight threads at the side of the empty 

 webs were a number of egg cocoons, some of them open and some of 

 them closed. Two adult spiders were taken from closed cocoons ; one 

 was taken from an open case in which were also numerous moulted 

 skins of young spiders. 



EPEIRA PROMPTA. 



The webs of this species are the same as those of Cyclosa caudata, 

 consisting of a vertical orb with a long horizontal line above. On 

 Albemarle the species was found only amongst the bushes in the 

 small canyon at the head of Tagus Cove. On Narboro it was com- 

 mon on the lava fields along the eastern shore. The webs were 

 here mostly stretched across fissures in the lava. Early in the 

 morning the spiders were to be found in the centers of their webs, but 

 an hour or so later none were to be seen. When disturbed they as- 

 cend the orb to the horizontal line at the top and run along this to the 

 rock at one side, hiding there in some crevice. 



