202 REV. T. E. E. STEBBING ON NEW EXOTIC AMPHIPODA 



spine of lower distal margin not large ; rami rather longer than peduncle ; outer rather 

 longer than inner ; inner with a row of six spines on the upper margin. 



Second uropods: rami rather shorter than peduncle, with few spines, the edges 

 microscopically serrate, with the serrations again minutely serrate. 



Third uropods : the rami longer than the peduncles ; the outer edge of the outer and 

 inner edge of the inner ramus straight, with few spines. The outer ramus has its inner 

 edge proximally smooth, then narrowing with a curve, dentate for a short space, and 

 for the remainder of its length to the apex microscopically serrate. The inner ramus, 

 as in the second uropods, forms a fold beneath on its inner proximal edge ; on the 

 outer edge it overlaps the outer branch, and is uniform with the inner edge of that 

 branch, except that the strong dentation is carried much further down. The inner 

 branch is only a trifle shorter than the outer. 



The telson is rather longer than broad, lateral edges rounded, narrowing a little 

 distally, distal border almost straight, the slit reaching rather beyond the middle of 

 the length. The two halves of the telson in the specimen described are not quite 

 symmetrical, nor are the bristles equal in number or quite symmetrically placed on the 

 two sides, one of which has five, the other six. 



The head is very elongate, truncate in front, with very slight concavity, lower margin 

 sloping obliquely backwards below the eyes ; median dorsal line angled. Front and 

 hind margins of the peraeon segments strongly dovetailed below. The branchiae have 

 near the point of attachment a lobe which is narrower than the main vesicle. 



First three segments of pleon rounded below both anteriorly and posteriorly. The 

 line of (incomplete) coalescence between the fifth and sixth segments can be discerned 

 across the back, not far from the telson. 



The specific name is derived from /caAAoe, beauty, and apdpov, a limb. 



2. Talokchestia tumida, n. sp. (Plate XXXIX. fig. A.) 



Eyes large, round, separated from one another by less than the diameter of either, 

 reported to be, in living specimens, of a turquoise-blue colour; ocelli extremely 

 numerous. 



Eostral angle very obtuse. Upper antennae short, reaching a little past the end of 

 the penultimate joint of the peduncle of the lower pair; first joint of peduncle broad, 

 a little longer than broad, second joint shorter, much narrower, third joint rather 

 longer than second; flagellum 7-8-jointed, not so long as the peduncle, last joint 

 minute. Short, stiff spines at various points, of which the most considerable is an 

 incurved one on the outer lower half of the third joint of the peduncle. 



Lower antennae as long as the head and first two segments of the peraeon ; the third 

 joint of the peduncle with a short two-spined process on the inner side ; fifth joint of 

 peduncle the longest; flagellum 12-15-jointed, a little shorter than the peduncle. 



