PLATE IX. 



FIGS. 



1-5. Caligus pelamydis Kroyer, ?. (p. 57.) 



1. Antennule. 



2. Antenna. 



3. First maxilliped. 



4. Second maxilliped. 



5. Foot of 'fourth pair. 



6-9. Pseudocaligus brevipedes (Bassett- Smith), (p. 61.) 



6. Sternal fork, ? . 



7. Sternal fork, < . 



8. Second maxilliped, ? . 



9. Foot of fourth pair, ? . 



( Figures much enlarged.) 



