neio Crustacea from Devon and Cornwall. 290 



longer than the third or fourth, which are subequal ; all the 

 other joints are smaller, as shown by the formula — 



Proportional lengths of the joints. 25 . 46 . 34 . 34 . 12 . 10 . 8 . 6 . 16 . 

 Numbers of the joints 1 2 3 4 5 6 78 9* 



The outer ramus of the second antennae is three-jointed 

 and moderately elongated, the middle joint being about as 

 long as the end one. 



The mandibles resemble those of Stenhelia ; the basal joint 

 of the mandible-palp becomes broader towards the distal end 

 and is furnished with two uniarticulate branches, the distal 

 one being more elongated than the other. The second 

 maxillipeds resemble those of Stenhelia hispida, G. S. Brady. 



The first thoracic legs have the inner branches very long 

 and slender and apparently three-jointed ; the first joint is 

 about half the length of the second, but the end one is very 

 short ; a plumose seta springs from the inner distal angle of 

 the first joint, while the end joint bears two claw-like terminal 

 spines of unequal length ; the outer branches reach to about 

 the middle of the inner ones. The second, third, and fourth 

 pairs are slender and moderately elongated ; in the outer 

 branches of the fourth pair the first and second joints bear 

 exteriorly a small spine near the distal end and a plumose 

 seta on the inner margin, while the end joint is furnished 

 with two terminal spines — one small and one long and slender 

 — and a moderately long seta ; the first two joints of the 

 inner branches are each furnished with a seta on the inner 

 margin, while two seta? spring from the inner margin of the 

 third joint, which also bears two seta? and a small spine at 

 the apex. The fifth pair has a small primary joint, sub- 

 triangular in form and provided with five seta? on the lower 

 half of the inner margin and apex. The secondary joint is 

 elongated, the upper portion is subcylindrical, the greatest 

 breadth being equal to about a third of the entire length ; at 

 about a third from the distal end the outer margin slopes 

 gradually inwards till it meets the nearly straight inner 

 margin ; a single short seta springs from near the lower end 

 of the inner margin and five from the distal third of the 

 outer margin, the apical and middle seta? being elongated, 

 but the other three moderately short. 



Furcal joints very short. 



Hab. Dredged outside of Fowey Harbour, Cornwall, on 

 May 9th, 1903 ; rare. No males were observed. 



