AMYMONE 27 



with numerous marginal setge, some of which are 

 plumose, the basal joint dilated and embracing the 

 second joint; in the male the limb is much smaller 

 and less profusely setose, the inner segment of the 

 basal joint having only two strong apical spines and 

 a fringe of fine cilia along the inner margin. The 

 caudal segments are very short the length being 

 less than the width, and bear several short and two 

 long setae, the inner and larger of which is finely and 

 shortly plumose, and about as long as the abdomen. 



This very distinct and well-marked species is perhaps 

 not uncommon off the Durham coast, a considerable 

 number of specimens having been noticed in two 

 dredgings, off Hawthorn, in a depth of twenty-seven 

 fathoms on a sandy bottom, and eff Seaham, in thirty- 

 seven fathoms amongst mud. It may be noted that 

 these two localities are in close proximity. 



Suit-family 3. AMYMONIN.&, BoecJc. 



Posterior antennae 3-jointed, with a small 1- or 2- 

 jointed inner branch ; mandible-palp 1-jointed ; maxil- 

 lar palp 2-jointed, slender. Anterior foot-jaw 3-jointed, 

 digitate ; posterior strongly chelate ; branches of first 

 pair of feet 1-jointed, of following pairs 3-jointed. 



One genus only -Amymone. 



