SCUTELLIDIUM. 175 
Genus 33. SCUTELLIDIUM, Claus (1866). 
(Porcellidium, Boeck, 1864. <Aspidiscus, Norman, 1868.) 
Body depressed, subovate. Anterior antennz 9- 
jointed, with very short median joints; posterior 
3-jointed, the inner branch short, 1-jointed (?). Man- 
dible-palp (Pl. LXVIII, fig. 4) large and complex, 
bearing numerous stout setiferous filaments; maxillary 
palp (fig. 5) provided with two very long and stout 
ciliated sete. Both pairs of foot-jaws forming 
clawed hands. First pair of feet prehensile, very 
like those of Idya. Fifth pair foliaceous, the outer 
branch much elongated. One ovisac. 
1. SCUTELLIDIUM TISBoIDES, Claus. Pl. LXVIITI, figs. 
1—10 
Scutellidiwm tisboides, Claus. Die Copepoden-fauna von Nizza, p. 
21, taf. iv, figs. 8—15 (1866). 
Cephalothorax broad, rounded in front; second, 
third. and fourth segments very short; abdomen 
much narrowed. Anterior antennz 9-jointed, the 
first three joints large (fig. 2), fourth and eighth very 
short, fifth, sixth, and seventh shorter still, terminal 
joint longer and slender; the fourth, fifth, and sixth 
joints are each successively narrower than the preced- 
ine, the last three being slender and of nearly equal 
width. Foot-jaws short and stout; last joint of the 
first pair (fig. 6) slender and bearing two curved apical 
