PLATE VI. 



Thawmastocheles zaleuca, nat. size (p. 47). 

 c. Ventral aspect of the cephalon. 

 c". Frontal aspect of the same. 



b. First antenna. 



c. Second antenna. 

 h. First gnathopod. 



i. Second gnathopod. 



k'. First pereiopod, showing the propodos. 



k". First pereiopod, showing the articulation of the dactylos. 



k'". First pereiopod, showing the articulation of the ischium with the basis. 



n. Fourth pereiopod; terminal joints. 



o. Fifth pereiopod ; terminal joints. 



p. First pleopod. 



q. Second pleopod. 



