434 MR. G. S. BRADY ON 



1. Macrocheiron fuctcolum, nov. sjo. PI. XVIII., figs. 9-18. 



Rostrum short but distinctly angulated. First cephalothoracic 

 segment very large, following three small, fifth constricted at 

 the base, but much swollen and elongated below, equal in length 

 to the preceding three segments : abdominal joints short, none 

 of them longer than broad, the first the shortest. Superior an- 

 tennae in the male seven (?), in the female six-jointed. Last 

 joint of lower antenna very short, bearing several long setae and 

 a long curved claw which is serrated on its inner margin. Ter- 

 minal claw of the lower footjaw very long and strong, suddenly 

 curved at the extremity. First three pairs of swimming feet 

 short, springing from a large base, the joints short and broad : 

 fourth pair having the outer branch elongated, the inner short, 

 bi-articulate, its second joint bearing two apical setae. Fifth 

 pair of feet rudimentary, slightly different in the two sexes. 

 Caudal segments about thrice as long as broad, setae short, 

 ciliated, jointed in the middle. Length, --j^-th of an inch. 

 Colour dark brown. 



Hab. — Amongst fuci near low water mark, between Ryhope 

 and Sunderland : two or three specimens. 



This approaches very closely the genera Oncaea, Philippi, and 

 Antaria, Dana, but does not seem strictly referable to either of 

 them. Probably, indeed, the two are synonymous. One of my 

 specimens differed in some minor points from the others, whence 

 I supposed it to be of different sex, and have so described it 

 here. The species, however, requires further examination. 



Fam. HARPACT1D,E. 

 Genus LONGIPEDIA, Claus. 



1. LONGIPEDIA CORONATA, ClctUS. 



This beautiful species occurred abundantly on a sandy bottom 

 off Seaton Carew, in a depth of four fathoms, also off Seaham 

 Harbour (twenty to thirty fathoms), and among weeds near the 

 Bell Rock Lighthouse. Mr. Norman finds it in Shetland, and I 

 have myself taken it on the West Coast of Ireland. 



