PLATE IV. 



Fig. 19. Ammotliea acheliodes;, 434 ; dorsal view of body ; r, rostrum ; a, antenna ; h, 

 palpus; d, abdomen; e, oculiferous tubercle; s', etc., lateral processes; I, 

 legs ; 1) (smaller tigiire), accessory leg. 



20. The same; a, terminal joints of leg; &, antenna; c, palpus. 



21. Nymphon macrum, 487 ; dorsal view of oculiferous segment ; terminal joints 



of leg ; paipus. 



22. The same; a, antenna; h, spines from fixed claw; c, spines from movable 



claw. 



23. The same ; accessory legs of male and female (both are eahu'ged to the same 



amount). 



