of the North-east Coast of England. 9 



Cyclopicera lata^ n. sp. PI. III. figs. 3-8. 



Superior antennse twenty-jointed, basal joint large, next 

 eight very short and broad, the following six about as long as 

 broad, sixteenth and seventeenth about twice as long as broad, 

 last three shorter and more slender, seventeenth joint bearing 

 a long laminated ensiform seta ; interior antennse triarticulate, 

 the first joint bearing a minute biciliated one-jointed branch, 

 second joint of about equal length with the first, third very 

 short and bearing a slender terminal claw ; maxillaj two- 

 branched (?), each branch terminating in three long slender 

 setai ; fifth pair of feet very small, laminar, with one basal and 

 two apical sette. First segment of abdomen very short and 

 broad, finely ciliated in the middle of each lateral margin ; 

 caudal segments about twice as long as broad ; setai equal in 

 length to the abdomen. 



One specimen only, taken amongst weeds in rock-pools at 

 Roker. 



Fam. Corycseidse. 



Genus Macrochiron *, nov. gen. 



Superior antennee (six to seven-?) jointed; inferior four- 

 jointed, uncinate. Lower foot-jaw very large and powerfully 

 chelate. First three pairs of swimming-feet alike, each branch 

 being three-jointed ; fourth pair with the inner branch small 

 and two-jointed, rudimentary. Fifth segment of cephalothorax 

 long and greatly swollen below. Abdomen consisting of five 

 segments, all short. 



Macrochiron fucicolum^ n. sp. PI. III. figs. 9-18. 



Rostrum short, but distinctly angulated ; first cephalo- 

 thoracic segment very large, following three small, fifth con- 

 stricted at the base but much swollen and elongated below, 

 equal in length to the preceding three segments ; abdominal 

 segments short, none of them longer than broad, the first the 

 shortest. Superior antennge of the male seven- (?), of the 

 female six-jointed ; last joint of lower antenna very short, 

 bearing several long seta and a long curved claw, which is 

 serrated on its inner margin ; terminal claw of the lower foot- 

 jaw 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 liaving the outer 

 branch elongated, the inner short, biarticulatc, its second joint 

 bearing two apical setee. Fifth pair of feet rudimentary, 

 slightly different in the two sexes. Caudal segments about 



* Ma»cpor, long ; x(\p, a luand. 



