71 



granular skin; more outwards there seems to be a single, straight hair. The 

 serrula interior is only fastened at its base (fig. 1 C, a) and is very long, slender 

 and pointed. The first tooth behind the pointed tip is long, slender and curved 

 slightly backwards; the following seven teeth, which are shorter and obtuse, are 

 tlirected obliquely outwards, in contrast to the four basal, which are directed more 

 forwards. The serrula exterior is fused with the finger in its basal third part, 

 which forms an obtuse angle with the distal part, tlie serrula is terminated with 

 a long spine, which is moderately curved backwards in the middle. The inner 

 margin of tliis organ is dissolved into teeth, more than half as long as it is broad; 

 the distal longer of these teeth are on account of the position of the serrula directed 

 backwards and inwards, while the proximal, shorter ones are directed more for- 

 wards (fig. 1 d, c). 



I^abrum (figs. 1 e-g). — The free anterior projection of the labrum obtusely 

 pointed ; hindmost prolongation {p) as long as labrum proper, narrowed behind and 

 fairly rounded. Anterior projection beset with clear hairlike organs, (\^'ith regard 

 to further details I refer to p. 25). 



Maxillae (flgs. 1 e-g). — The manducatory part of the maxillae is rather blunt 

 and provided with two hairs, where the exterior margin is curled over upwards 

 (fig. 1 f). Lamina maxillaris superior (Is) is rather short, widened 

 out in the front, anteriorly rounded and serrated, and directed 

 upwards and outwards. The lamina maxillaris inferior (/n is 

 long and pointed, and extends beyond the tip of the labrum 

 (fig. If)'). (With regard to details in the structure of these 

 organs I refer to pp. 25 — 26). 



Palps (fig. 1 a and textfigure 11). — The palps are smooth 

 with the exception of the inner surface of the femora, which 

 is provided with low minute granules. The comparatively few 

 hairs are moderately long and slender. The hand bears only 

 a single pair of dorsal tactile hairs, removed from the base 

 a distance about as long as one third of the length of the hand 

 (fig. la, fig. 11); the number and arrangement of the tactile 

 hairs of the fingers are given in the figures (fig. 1 a and fig. 11). 

 The trochanter is distinctly longer than broad ; its anterior margin 

 is moderately convex, while the posterior is concave. The femur, 

 which is four times as long as broad, has a very short stalk 

 and almost parallel sides; its anterior outline is beyond a short 

 basal concavity almost straight; its posterior margin has first a 

 short rather sudden convexity, beyond which it is moderately " "*o. Left tibia and 



. , ,, 1,1, Ti i-i • u iu chela ill e.xtciior view. 



concave m the middle and at least convex. Ihe tibia has the 



usual calyci-like shape and is enlarged distally to a degree; it is half as long as 



') In one specimen (? from the Western side of Koli Chan«) tlie dorsal side of the maxillae bears 

 terminally a rounded, inwards and upwards directed jirojection partly overlapping the labrum. 



Fig. 11. Chlhonius 

 terribilis n. sj). -^ 



