PLATE XVII. 

 Pentacheles euthrix, female; enlarged one and three-quarter times (p. 149). 



(Pentoeheles enthrix on Plate). 



c. Cephalon, showing ophthalmopoda (a,a); first pair of antennae (b,b); second pair of 

 antennae (c,c). 



vf. Cephalon, one side of frontal aspect ; a, ophthalmopoda ; b,c, antennae removed. 



v!". Cephalon, under surface, showing ophthalmopod (a); first antenna (6); second 

 antenna (c); phymacerite {op). 



c. Second antenna ; op, phymacerite. 

 o'. Fifth pereiopod, under surface of terminal chela. 

 o". Fifth pereiopod, upper surface of terminal chela, 

 p. Pleon; lateral view. 

 p, ?. First pleopod. 

 q. Second pleopod. 



