336 
PLATE II. 
Fig. 
1. The spinners of Ciniflo atrox: a, the fourth or inferior pair, 
from which the material proceeds that is formed by the 
calamistra into the pale-blue bands in the snare of this 
species. 
2. A lateral view of a superior spinner or mammula of Agelena 
labyrinthica : b, the spinning-tubes. 
3. The left maxilla and palpus of Mygale ursina : c, the spines 
at the base of the former. 
4, The lip of Mygale ursina: d, the spines at its extremity. 
5. The right maxilla and palpus of Mygale zebra: e, the spines 
on the superior surface of the former. 
(All the figures are highly magnified.) 
