PLATE XXI. 



FIGS. 



1. Lepeophtheirus sturionis (Kroyer). (p. 74.) 



1. Dorsal view, ?, x 6'6. 



2. Pandarus bicolor Leach, (p. 95.) 



2. Dorsal view, <$ (juv.) =Nogagus latus T. Scott, x 15. 

 3, 4. Cecrops latreillii Leach, (p. 98.) 



3. Dorsal view, $ , x 2. 



4. Dorsal view, , x 2. 



5. Orthagoriscicola muricata (Kroyer). (p. 100.) 



5. Dorsal view, $ , x 2'5. 



