PSEUDOCYCLOPS. 83 



very short and broad, gradually decreasing in breadth 

 to the fifteenth, which is about as long as broad ; last 

 two joints more slender, about twice as long as broad, 

 the whole limb densely beset on the outer margin, 

 especially towards the base, with long setae ; antenna 

 of right side (fig. 1) 10 -jointed, the central joints much 

 enlarged, last two suddenly contracted and similar to 

 those of the left side, antepenultimate joint armed 

 with a strong lateral subfalciform process. Both 

 branches of posterior antennae bearing numerous long, 

 curved terminal setae, first joint of the lower branch 

 enlarged and truncate at the distal end. Maxillae com- 

 posed of four digitate lobes, each bearing four long 

 terminal setae. Lower foot-jaw stout, with almost 

 entire margins. Joints of swimming feet very broad, 

 subtriangular, much produced at the external distal 

 angle. Abdomen slender, 4-jointed, tail setae slender, 

 finely plumose, the longest equal to about twice the 

 length of the abdomen. Length of animal - 3 - 8 -th of an 

 inch (*66 mm.). 



Hob. — Off Seaham Harbour (Durham) dredged in a 

 depth of twenty to thirty fathoms. One specimen only 

 taken. 



The type specimen of this species having been 

 destroyed in dissection, I have now no opportunity of 

 confirming the original description, and, though enter- 

 taining some doubt as to its distinctness, I retain it 

 provisionally until its claim to specific rank can be 

 further investigated. 



