PLATE XL 



Lysioerichthus. 



Fig. 1. Lysiosquilla {Coronis) excavatrix. Ventral view of a young Erichthus larva 

 {Erichthus multispinons, Claus). 



Fig. 2. Lysiosquilla {Coronis) excavatrix. Side view of same larva. 



Fig. 3. Lysiosquilla {Coronis) excavatrix. Side view of older larva. 



Fig. 4. Lysiosquilla maculata. Ventral view of Squillerichthus larva. 



Fig. 5. Lysiosquilla maculata. Marginal spinules of telson. 



Fig. 6. Lysiosquilla {Lysioerichthus) triangularis, from Rio Janeiro. 



Fig. 7. Telson and uropods of same. 



Fig. 8. Raptorial claw of same. 



Fig. 9. Seventh thoracic appendage of same. 



Fig. 10. Lysiosquilla {Lysioenchthvs), f^ of an inch long, collected between Papua and 

 Japan. 



Fig. IL Telson and uropods of same. 



Fig. 12. Side view of carapace of same. 



Fig. 1 3. Raptorial claw of same. 



Fig. 14. Lysioseiichthus (?), from Kaudavu Lsland, Fiji. 



