26 T. V. HODGSON. 



joint is small, and the proportions of the remainder are 4:3: 1 '5 : 3. The terminal 

 joint is well supplied with setae on the outer side, and the preceding one is similarly, 

 but less well, provided. Elsewhere they are scanty, a few on the third, and only an 

 occasional one on the second. 



The Oviger is ten-jointed, and rises from a small process immediately in front of 

 the first pair of lateral processes (fig. 4b.) The first joint is very small, the two 

 following are longer and subequal, the third having as usual a very oblique termination. 

 The fourth and fifth joints are subequal, and each much longer than the first three 

 together ; the sixth is half as long as the preceding. Of the four terminal joints the 

 first is the longest, the rest differ but little, but the last is longer than the others, 

 and bears a terminal claw with some half-dozen teeth. A limited number of setae 

 occur on all the joints from the end of the fourth. The denticulate spines are not 

 very numerous, 8:5:4:5, and consist of a slender tapering shaft with from five to 

 seven lateral teeth ; the second from the base is strongly developed, the rest graduated 

 to nothing (plate X., fig. 10). 



The Legs are long and very slender ; they are about 9mm. long. Of the three 

 coxae the second is longer than the other two together, the proportions of the remaining 

 joints being 4 : 4'5 : 7 : 1 : 1'5. The terminal claw is more than half as long as the 

 propodus, and is accompanied by two slender auxiliaries. The entire limb is rather 

 thinly clad with setae, which, as usual, are most abundant on the second tibia. The 

 propodus bears ventrally a row of comparatively strong spines, not very regular, the 

 middle ones being generally best developed. 



This is not a mature form, and the sexual apertures cannot be distinguished. I 

 am unable to identify it with Nymphon hiemale, though it occurs in the same locality, 

 and feel compelled to regard it as an independent species. 



CH^TONYMPHON VILLOSUM. 



(Plate IV., fig. 1 ; Plate X., fig. 11.) 



Specific characters : 



Body robust and with the appendages covered with long and fine setae ; lateral processes close 

 together. 



Ocular tubercle rather tall, with four eyes at summit. 



Palp five-jointed, proportion of last three 6:2:3. 



Oviger ten-jointed, denticulate spines not numerous, having five to seven lateral teeth on each side. 



Legs short, with a strong terminal claw and two well-developed auxiliaries. 



Body very robust and, with the appendages, covered with long and fine setae. 

 The lateral processes are close together, and these, being stout, give the body a compact 

 ovoid form. 



The Cephalon is short, much expanded, and the neck, which thereby becomes 

 distinct, is scarcely a real constriction, the expanded portion being divided into two 

 distinct lobes, bearing a few long setae distally. Similar setae occur dorsally on 



