PYCNOaONIDA. 15 



on the opposite side distally. The seventh, eighth, and tenth joints are sub-equal 

 in length, and the ninth is a little shorter. The arrangement of the setse is the same 

 as on the sixth joint, except that the distal group on the outer side increases on each 

 joint, so as to involve the whole of it. The setse on the five terminal joints are very 

 long and quite simple. 



The Legs are very stout, and some 36mm. in length. The first coxse are about as 

 long as their corresponding lateral processes ; the second are longer, and, in the female, 

 bear a conspicuous enlargement ventrally near the distal extremity, upon which the 

 large genital openings occur ; these are on all the limbs. The third coxse are about 

 the same size as the first. The three following joints differ but little in size, being 

 proportionally as 8"5 : 9 : 9"5. The tarsus is very small, and the propodus is about 

 a quarter the length of the second tibia. The entire limb is clothed with setse. 

 Dorsally the three coxse each bear a prominent distal fringe of long setse. The first 

 has two lateral bands in addition, while the other two are more completely clothed. 

 Ventrally the third coxa is partially covered with small setse, and has a prominent 

 distal fringe of longer ones, the other two only possess a distal fringe of short 

 setse. On the femur the dorsal surface is covered with long setse, which also form a 

 prominent distal fringe ; the ventral surface bears only small setse, but on each side 

 there is a band of the large ones just below the well-developed lateral line. This 

 arrangement holds good on the two tibise, but the setse are much more thickly 

 set. At the distal extremity of the second tibia the setse become spinous ventrally, 

 and as spines form the distal fringe on that side. The ventral surface of the tarsus is 

 clothed with spines which are large distally ; dorsally there is a fringe of setse only. 

 The propodus is covered dorsally with setse of more moderate length than those on 

 the appendage generally ; laterally they are smaller still, and along the ventral 

 aspect there is a row of about a dozen strong spines, a little irregular in size, 

 but one or two of the proximal ones are much the largest. There is no projection of 

 the propodus beyond the insertion of the terminal claw, which is stout and rather 

 more than half the length of the joint that bears it. It is accompanied by two small 

 auxiliaries. 



The single specimen is an adult female, and contains ripe ova. 



Taken off Coulman Island in 100 fm., on mud and stones, January 13th, 1902. 



Pallenopsis pilosa. 

 (Plate II., fig. 2.) 



PhoxicMlidium pilosum, Hoek (14). p. 90. 

 Pallenopsis pilosa, Hoek (16). p. 9. 

 Specific characters : — 



Body not very robust, with lateral processes not widely but distinctly separated. Body (dorsally) 

 and legs covered with extremely long thin hairs. 



Chelifori well developed, scape showing distinct articulation on the dorsal surface. No setose 

 pad at base of dactylus, 



VOL. Ill, 



