PLATE XVI. 



Pentacheles gracilis (p. 146). 



Fig. 1, £. Dorsal view of the female ; enlarged one and three-quarter times. 



„ lc. Part of the anterior portion of the cephalon ; enlarged, showing the ocular 

 notch (a), with the position of the ophthalmopod traced beneath ; first 

 antenna (b) ; second antenna (c). 



„ lo. Posterior pair of pereiopoda of female. 



,, 2. Lateral view of the same animal. 



Stereomastis auriculata (p. 159). 

 (Pentoche/es auriculata on Plate.) 



,, 3, ?. Dorsal view of the female. 



,, 3c. Anterior portion of the dorsal surface of the cephalon, showing the ocular 

 notch with the ophthalmopod (a). 



,, 3c". Anterior portion of the cephalon, showing the lateral and under view, ophthal- 

 mopod (a), and second antenna (c). 



,, 3o. Chela of posterior pereiopod ; female. 



,, Sq. Second pair of pleopoda. 



,, 4. Lateral view of the same animal. 



