63 



bearing at the apex a long slender spine having a slightly 

 thickened base, and a small hair; a short seta also springs 

 from near the base of the upper margin. Mandibles 

 elongate narrow, denticulated on the oblique apex, palp 

 rudimentary and consisting of a single moderately long 

 hair. Maxillae tWo-lobed, both lobes of about equal 

 length, but one is slightly narrower than the other and is 

 furnished with one seta at the apex, the broad lobe has 

 four setae on its apex. Foot-jaws somewhat similar to 

 those of CoUocheres gracilicaioda (Brady). First four pairs 

 of swimming feet also similar to those of that species ; the 

 outer branches of all the four pairs are armed with short 

 dagger shaped spines and the terminal joint of the inner 

 branch of the fourth pair is furnished with one stout 

 dagger shaped spine on the apex and a smaller one near the 

 middle of the outer margin. Fifth pair of feet somewhat 

 rudimentary, two-jointed, basal joint broadly triangular 

 in shape, the second joint which is attached to near the 

 middle of the outer margin of the basal joint is elongate, 

 curved, and bluntly serrated at its apex, the length being 

 about equal to three and one-half times the breadth ; it is 

 furnished with three sette, one on the apex and two a 

 little lower down on the outer margin and slightly 

 separated from each other. Abdomen slender, four-jointed, 

 genital segment elongate narrow, length nearly equal to 

 twice the breadth, and longer than the combined lengths 

 of tlie next three segments, second joint about one-third 

 the length of the first, third joint slightly smaller than 

 the second, fourth joint smaller than the third. Caudal 

 stylets about four times as long as broad and nearly equal 

 to the length of the last two segments of the abdomen. 



Habitat, off Port Erin, from dredged material collected 

 June, 1895, only one specimen has been observed. 



Bemarks. — This species is not unlike CoUocheres gracili- 



