IN THE BRITISH AJSTD COPENHAGEN MUSEUMS. 223 



closed, as both those movable and, in a less degree, those immovable are concave in 

 the middle and bear on the distal fifth, where they touch each other, a close row of 

 conical teeth. In addition to this the movable fingers possess about five marginal 

 teeth in the middle, and the immovable six teeth in the middle and five more basally. 

 The immovable fingers bear anteriorly about seven " sjiofs" arranged as shown in 

 figure 1 d, and the movable fingers about 15 arranged longitudinally from base to 

 tip ; both fingers appear to have numerous spots on the posterior surface, but details 

 could not be investigated in the single specimen at my disposal. 



Coxae (PL XXIX. fig. 1 b). — The second and third pair of somewhat irregular shape, 

 widened out towards the extremity and rather elongated — especially the third pair, which 

 in shape somewhat resemble the fourth pair, which are almost 2 '5 as long as wide, very 

 short basally and distinctly widened out towards the end, where they bear a prominent 

 exterior spine. The posterior margins of the fourth pair are distinctly concave in the 

 middle. 



Coxal sac. — The coxal sac is very small and is far from filling the whole coxa ; in 

 structure it is very similar to that of Ch. mortensenii With, as it has a well-developed 

 basal portion, scarcely half as long as the distal ; posteriorly the two- portions pass into 

 each other, but are separated anteriorly by a deep cleft, continued above and below 

 into a shallow depression. As regards the structure of the funnel, which has some of the 

 fused hairs prolonged into the cavity of the distal sac {cf. 21. pi. vii. fig. 4y), I refer to 

 Ch. mortensenii With (20. pp. 46-47). The distal portion of the sac tapers somewhat 

 towards the end, where it bears numerous setigerous cones and ridges, which, towards 

 the base, are most marked on the anterior surface. 



Legs (PL XXIX. figs. 1 e-f).- — Hairs short, especially dorsal ones, obtuse or slightly 

 clavate. Subtermi^ial hairs of the first pair bear no teeth ; the anterior is shorter and 

 more suddenly curved (fig. If, hi) in contrast to the posterior, which is more slender 

 and only slightly curved (he) ; the posterior subterminal hair of the fourth pair is 

 slender and moderately curved, with a tiny ventral tooth near the tip. A tarsal 

 " tactile " hair, -f removed from the tip, seems to be present. The legs are rather long 

 and slender ; the trochanter of the first pair is much deeper than the femur proper, 

 probably in correspondence with the very wide articular cavity ; the tibia is much (1"3) 

 longer than the tarsus, which is about four times as long as deep in the middle, where 

 it is deepest on account of the slightly convex ventral margin ; this joint is terminally, 

 behind and above the articulation of the claws, pi'oduced into a small conical eminence 

 {■p). The femur of the fourth pair of legs, which is very suddenly raised beyond the 

 stalk, is 2*8 as deep as long, 1-3 as long as tibia, and 1-4 lower than tarsus long. The 

 anterior claw of the first leg (fig. 1 f ci) is abruptly curved, with a median, almost 

 obsolete, ventral tooth, in contradistinction to the posterior claw {ceos), which is only 

 moderately curved, without any tooth ; the claws of the second pair of legs appear 

 bifuixate, while those of the third and fourth pair possess a rather small anterior tooth. 



