154 



MK. I. C. TllOMPSO:Pf ON THE COPEPODA OF 



autennse (fig. 9) two-bran ehed, the first being 3-jointed and 

 terminated by two long lancet-shaped spines ; the second has 

 one joint, and is terminated by a long sword-shaped spine. 

 First and second foot-jaws (figs. 1() & 11) each have a long apical 

 claAv, the first is composed of two, the second of four joints. 



Firist four pairs of swimming-feet nearly alike, both branches 3- 

 jointed(PL XIII. fig. 5); base and second joint of chief branch have 

 very tine serration on inner edge formed by minute hairs. Fifth 

 feet (PI, XIII. fig. 6) are composed of two stout joints, the outer 

 bearing a number of long setae, some of them plumose ; the outer 

 edge of both joints has fine hairy serration. Caudal segments and 

 terminal setse are the same as in A. scutatus. 



Hiphon very long and slender, reaching to the ends of caudal 

 segm.ents. 



One specimen only of this new species was taken at Funchal 

 Bay, Madeira. The angular shape of the posterior segments of 

 the cephalothorax readily distinguish it from A. scutatus^ which 

 it resembles in general characters, 



Artotkogus Noemani, Brady Sf Bohertson. 

 Found very sparingly. 



CiMBASOMA, n. gen. 



Cephalothorax elegantly boat-shaped, 4- to 6-jointed ; head 

 united with thorax. Anterior antennae 5- or 6-jointed, broad 

 and muscular. No posterior antennae or foot-jaws. First four 

 pairs of swimming-feet have a large basal joint, the two branches 

 being each 3-jointed' and terminated by strong spinous setae. 

 Abdomen in female 2-jointed, the first much larger than the 

 second ; and from the centre of the latter are attached the ova on 

 long narrow branches. 



CiMBASOMA IIIGIDUM, U, Sp. (PI, XIII. figS. 1-4.) 



Length J inch. First joint of cephalothorax (fig. 1) equal in 

 length to the succeeding five, the last being much smaller than 

 the others, and appearing as though part of the abdomen. Eyes 

 long and kidney-shajDed, with conspicuous brain below. Ante- 

 rior antennae (fig. 2) about eight times as long as broadest part, 

 and terminated by two claw-like spines ; the inner side of each 

 antenna has five hooked spines (fig. 2). From two raised circum- 

 ferences near the centre proceed long spinous setae, and several 

 smaller setae are situated near the apical portion of the antennae. 



