in the Britiah }fuseum. 119 



identical with or similar to those described by H. J. Hansen 

 ill Ch. cimicoides (15, p. 218, pi. v. fig. 14 a). Each organ 

 consists apparently of a more or less irregnlarly shaped 

 area with a marked round spot ; they are either apart or 

 more or less fused ; the area itself is in reality placed under 

 the skin as a kind of chitinous sac. The immovable finger 

 has inwards two tactile hairs and about eight of these organs, 

 placed in the proximal portion ; the movable has none ; the 

 immovable as well as the movable possess outwards three 

 tactile hairs and twelve organs. The trochanter, which is 

 distinctly longer than broad, has a distinct stalk, which 

 is enlarged basally; the interior margin is first suddenly 

 and then gradually convex ; the exterior surface bears an 

 upper and a lower projection, the latter is the longer, but 

 neither the one nor the other is much more marked than one 

 of the femoral tubercles. The/emwr, Avhicli is a little more 

 than twice as long as broad, and distinctly broader than the 

 trochanter, is provided with an exceedingly short stalk ; the 

 tubercles make it difiicult to realize its shape, but the interior 

 side seems to be almost straight, wliile the exterior is slightly 

 convex. The tibia, which is slightly shorter but broader 

 than the femur, has a moderately long, well-marked stalk, 

 the axis of which forms an obtuse angle with the proper 

 joint, and accordingly gives the tibia an inward direction. 

 The interior side is moderately convex after the deep notch 

 which marks it off from the stalk; the exterior side is almost 

 straight beyond a sudden elevation which follows the stalk. 

 The hand, which is slightly shorter and a little broader than 

 the tibia, is as high as broad and longer than the fingers. 

 The inner curvature is more marked than the outer. The 

 fingers (fig. 2 e) gape widely when closed, because the lower 

 margin of the immovable finger is not straight, but with a 

 distinct bend upwards behind the tip. The proximal teeth 

 of the immovable finger are small and more or less rounded; 

 those of the notch are extremely small, but they are followed 

 by large and pointed ones ; the teeth of the movable finger 

 are all more or less minute. 



Cox<s (fig. 2f).' — The coxse are on a level with the maxillaj; 

 the first pair is the shortest and trapezoid in shape; the second 

 and third pairs are longer and enlarged distally, so that they 

 become nearly triangular. The fourth pair is both broader 

 and longer than the preceding ones (fig. 2/) ; they are 

 much longer in front than behind; the hindmost shorter 

 portion is distinguished from the anterior portion by a 

 shallow groove ; both the interior and posterior margins with 

 low concavities. While the hairs of the first three pairs of 



