EXPLANATION OF THE PLATES. 275 j 



PLATE II. 



Fig. 1. Pherusa tubulosa, p. 53. 



a. The front of a branch, of the natural sire. 



B. The back. 



C. Cells magnified. 



2. Electra verticillata, p. 53. 



a. A branch, of the natural size. 

 B. Cells magnified. 



3. Elzarina Blainvilliiy p. 54. 



a. The natural size. 



B. Extremity of a branch, magnified. 



4. Cellaria hirsuta, p. 55, 



a. Of the natural size. 



B. Fragment of a branch, magnified. 



5. Caberea dichotoma, p. 56. 



a. The natural size. 



B. The fore part of an articulation, magnified. 



C. The back. 



6. Cauda arachnoides, p. 57. 



a. The natural size. 



B. Fragment of a branch magnified, seen in 



front. 



C. Ditto the back. 



D. The transverse cut of a branch, magnified. 



