28 T. V. HODGSON. 
third coxa being the most deficient in this respect. The distal fringe is well developed 
ventrally on the second coxa, but more so on the third, and the ventral surface of this 
joint is covered with small setee. The femur is short and stout, approximately equal 
in size to the second tibia, the first being a little longer. The sete on these three 
joints are arranged in a thoroughly characteristic manner. There are two dorso-lateral 
rows and a lateral row, all of long, slender sete. There is also a ventral row of com- 
paratively short sete, five rows in all. The setee are much better developed on the 
second tibia than elsewhere. The distal fringes on these joints are normally 
developed ; on the tibize they are ventral and spinous, more especially on the second 
tibia. The tarsus and propodus are short and much more slender than the rest 
of the limb. The two joints differ but little in size, the propodus being a little 
the longer. This bears a stout terminal claw and two well-developed auxiliaries. 
The sete of these two joints are small, but have the same arrangement as on the 
other joints. The ventral row is, however, distinctly spinous, and a very prominent 
spine exists at the ventral end of the tarsus. 
Only one individual of this species was taken, and its sex has not been determined. 
Coulman Island, 13 January, 1902; 100 fathoms, stony bottom. 
CHETONYMPHON BIARTICULATUM. 
(Plate IV.,. fie. 25- Plate XX.) fey as) 
Specific characters :-— 
Body stout, tapering posteriorly, articulation deficient, lateral processes separated by variable 
intervals. 
Ocular tubercle long and slender. 
Palps five-jointed, proportions of last three as 3:1: 1. 
Oviger ten-jointed, denticulate spines not numerous, and with not more than five small teeth on 
each side. 
Legs of moderate length, covered with rather fine sete, terminal claw with small auxiliaries. 
Body is stout and tapering posteriorly, with the lateral processes separated by a 
moderate interval, except the last two pairs, which are quite close together, the articu- 
lation between them being deficient. The distal extremities of the ‘lateral processes are 
provided with slender spines, but these have enlarged bases and thereby become more 
prominent. 
The Cephalon is short and stout, a very distinctly constricted neck separating 
the expanded portion, which forms two diverging lobes. 
The Ocular tubercle lies immediately behind the neck and in front of the first 
pair of lateral processes. It is tall, slender, cylindrical, and bears four well-developed 
eyes at the extremity ; there is no pigment. 
The Abdomen is rather long, narrow, tapering to a blunt point, and not separated 
from the trunk by an articulation. 
The entire body is covered with very fine sete, not easy to distinguish, and in 
addition there are two long setee dorsally near the posterior border of each segment, 
