50 T. V. HODGSON. 



whole ventral surface, and extending dorsally in a very small degree on the first of these 

 joints but progressively more and more as the extremity of the appendage is approached. 

 The terminal joint is completely covered, but they are most abundant ventrally. 



The Ovigers are ten-jointed and rise ventrally in the angle formed by the cephalon 

 and the first lateral process (fig. 2b). The first six joints form the normal double 

 curve and are all more or less covered with small setae on the outer part of the 

 curvaturesi The proportions of the various joints are : 1'5 : 3'25 :2:3:3:2:2:2:1'5:2. 

 The last four joints are provided with a few large spinous setae forming, on three 

 of the joints, a small irregular group ventrally near the distal extremity ; on the terminal 

 one, which is much the most slender, they are scattered along its length, one of them 

 taking the place of the terminal claw. 



The Legs are not all the same size, the third pair being the longest and the first 

 the shortest, their respective lengths being approximately 30 mm., 35 mm., 39 mm., 

 3 7 '5 mm. The third leg of the right side has been measured. Of the three coxae the 

 second is longer than either of the other two, the three together attain a length of 

 8 mm., and the proportions of the other joints are as 9'25 : 9 : 8 : 3'5, the last figure 

 representing the tarsus and propodus together. The entire appendage is densely 

 clothed with rather short but fine setse having no special arrangement, except that on the 

 femur and first tibia they are not so numerous laterally. The tarsus is small, cuplike, 

 densely setose, but with no strong spines. The propodus is slightly curved, densely 

 setose, and with an oblique termination to the joint, but the process from which the 

 large terminal claw and its two moderate-sized auxiliaries arise projects beyond the joint 

 itself. The ventral margin of the propodus is spinose but varies greatly. In the best 

 instance there is a series of eight spines, the first four are small and then they increase 

 in size rapidly to the last, which is very large. These occupy the proximal half of the 

 joint. Then follows another series of six of nearly uniform size and not so large as 

 the biggest of the previous series. This second series occupies the remainder of the 

 joint and are disposed radially. In other cases the first series is not so well developed 

 and the second is deficient. 



The single specimen of this species is an adult female, the Genital apertures are 

 found near the middle of the second coxae of all the legs. 



Taken in 300 fathoms off the Barrier. Bottom : mud. January 27, 1902. 



LEIONYMPHON GLACIALE. 



(Plate VII., fig. 3.) 



Specific characters : 



Body well built, with three very prominent transverse ridges produced to a point in the mid-dorsal 

 line. Lateral processes rather widely separated, and with the stumps of spur-like processes distally. 

 Proboscis large, but shorter than the body, pyriform. 

 Palps 9-jointed, the five terminals being sub-equal in size. 

 Oviger 10-jointed (not mature). 



This is a large and comparatively slender species. 



