PLATE VII. 



Thaumastocheles zaleuca (p. 47). 



Fig. 1. Pereion ; lateral view, with part of carapace removed to show the arrangement 

 of the branchiae. 



„ lbr. Diagram of the vertical arrangement of a section of the branchial apparatus. 



,, le. First siagnopod. 



,, If. Second siagnopod. 



,, \g. Third siagnopod. 



„ 1/?. First gnathopod. 



Ibacctts verdi (p. 58). 



„ 2. Dorsal aspect of the pereion with the carapace removed to show the branchiae; 

 left side with the branchiae intact, right shown in section. 



,, 2d. Siagones or mandibles ; ff, shows the position of the extremities of the second 

 pair of siagnopoda. 



„ 2e. First pair of siagnopoda. 



,, 2/1 Second pair of siagnopoda. 



,, 2g. Third pair of siagnopoda. 



,, 2k. First pereiopod ; showing the coxa with mastigobranchia and podobranchia 

 attached. 



„ pic'. Upper surface of the pyloric apparatus. 



„ pic". Under surface of the pyloric apparatus. 



