PSEUDOOYCLOPS. 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 seta3 ; 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 setas, first joint of the lower branch 

 enlarged and truncate at the distal end. Maxilla3 com- 

 posed of four digitate lobes, each bearing four long 

 terminal setaa. 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 s\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. 



