16 T. V. HODGSON. 
The visible segments of the mesosome are smooth; the first is small, somewhat 
crescentic in shape and does not reach the margin of the body ; the second and third 
are narrow and their epimera are cleft ; the fourth segment is much longer than either 
of the two preceding. The fifth is very nearly as long as the first three together and 
shows indications of the median longitudinal division characteristic of many members 
of this family. The sixth segment is narrower but almost as long as the fourth, the 
postero-lateral angles project backwards as a large rounded process, the inner border 
of which forms a small tubercle. It is on this process that the last pair of pereiopoda 
are articulated. The last segment of the mesosome is very small and wedged in 
between these processes. 
The metasome comprises six distinct segments, of which the first is the shortest ; 
the sixth terminates in a telson which is triangular in shape and acutely pointed, 
fringed with short setee and with a stout one distally. The epimera are scythe-like 
in form and distinct from the segment bearing them. 
The uropoda are about the same length as the telson. 
The protopodite is short and broad and situated at a considerable angle with the 
last abdominal segment, and prolonged internally as a stout process with sete at the 
extremity. 
The exopodite is a little the narrower of the two and actually longer than the 
endopodite. This latter is a little broader and has its inner margin more rounded. 
Both are fringed with short sete and less abundantly with long plumose sete, 
especially on the inner margin. 
The first antenna comprises a peduncle of three joints, the proportions being 
2. 2.5, the last being very much the most slender ; this is followed by a flagellum 
of some half-dozen joints, of which the first is minute. 
The second antenna has a peduncle of four joints, the proportions being 2. 2. 
4. 5°5. The flagellum has about eight joints. In both cases the joints of the 
peduncles bear a few sete: distally and also along the last joint; shorter sete fringe 
all the joints of the flagellum. 
In Mr. Beddard’s description the two pairs of antenne are described as having an 
extra joint in the peduncle. 
The mandibles are strong and scythe-like. ach is slightly curved, pointed 
distally, and has a prominent spine on the outer margin. The inner border bears two 
sinall rounded flanges to fit similar ones from the opposite side. 
The maxilliped (fig. 8a) comprises a very thick basal joint, straight on its 
inner margin, with a series of fine sete distally, stronger ones proximally, rounded 
externally and fringed with longer and finer setee. From its inner angle of this joint 
there projects a thin, rather triangular joint and externally a four-jointed palp. The 
joints of the palp are broad and flat; the terminal one, however, is more slender ; 
their proportions are 1. 4. 3. 2. The external margin of all these joints is fringed 
with plumose sete, and there are three distally on the terminal joint. 
