EXPLANATION OF PLATE XXIV. 



Pilumnus semilanatus, Miers. Male (P. 3519). Carapace 

 29 mm. wide. 



Fig. 1. Dorsal view. 

 Fig. 2. Ventral view. 



Pilumnus rnfopunctatus, Stimpson. Male (E.4444). Cara- 

 pace 13 mm. wide. 



Fig. 3. Dorsal view. 

 Fig. 4. Ventral view. 



