Tubercle 



14 (13) Body length of adult larger (typical spec- 

 imens about 1.5 mm); with very low tu- 

 bercles on lateral processes 



Anoplodactylus petiolatus 



14 (13) Body length generally smaller (1 mm or 

 less) ; no tubercles on lateral processes 

 (a); comparatively fewer spines on legs 

 (b) Anoplodactylus parvus 



15 (8) Body slender; 

 legs about twice 

 as long as body; 

 auxiliary claws 



present 



ENDEIDAE. 

 Endeis spinosa 



15 (8) Body stout; legs short, not much longer than body; 



without auxiliary claws PYCNOGONIDAE 



Pycnogonum littorale 



