178 BRITISH GOPEPODA. 
2. SCUTELLIDIUM FascIATUM (Boeck). Pl. LXVIII, fig. 
11; and Pl. LATX, figs: 
1—9. 
Aspidiscus fasciatus, Norman. Brit. Association Report, p. 298 
(1868). 
Porcellidium fasciatum, Boeck. Oversigt Norges Copepoder, 
p. 56 (1864). 
Body ovate, abdomen much narrower than the 
cephalothorax, head and first thoracic segment coales- 
cent ; segments of the thorax prodyced backwards in 
acutely pointed, curved, and imbricated processes. 
Anterior antennee 9-jointed, slender, gradually tapered 
from base to apex ; first, second, and third joints in the 
jemale increasing progressively in length, remaining © 
joints very short; in the male the limb is somewhat 
flexuous, and hinged between the fifth and sixth joints 
(Pl. LXVIII, fig. 11); the fourth joint is longest, the 
second somewhat shorter, the first, third, fifth, and 
sixth still shorter and subequal, the last three very 
short. The posterior antenna (Pl. LXIX, fig. 2) has a 
long, slender, secondary branch springing from the apex 
of the first joint, dilated somewhat beyond the middle, 
bearing three strong lateral setze, and at the apex five, 
one of which is exceedingly long; the terminal setee of 
the main branch are rather short, geniculated, and 
minutely hooked or clawed at the apices, and the last 
joint has two minute file-like or aculeated processes 
near the extremity. Mandibles and maxillee very 
similar to those of the preceding species. Anterior 
