192 



longi ludina 



about seven long marginal teeth distally; the lamina interior has three dentated 

 lobes and a rather long, serrated spine; the basal tooth of the 20, which build up 

 the serrula exterior, has a rather small triangular tlap terminally. The galea, which 

 bears a single minute tooth near to the middle, is very short and does not extend 

 beyond the terminal hair. 



Maxillae. — The maxillae are smooth in the middle, minutely granular 

 laterally with a not very long lamina. 



Palps (PI. IV, fig. 9a; fig. 22). — The palps, which are of almost equal length 

 to the body, are smooth or perhaps very minutely reticutale with the exception of 

 the ti'ochanteral tubercles, the anterior surface of the femur and the tibia and the 

 base of the hand, which are minutely granular. The longer and shorter hairs are 

 stiff and provided with a few distal teeth; of the longer and more slender, com- 

 pletely simple hairs, which are usually found, only the posterior one at the base 

 of the tibia was found in this specimen ; the fingers possess tactile hairs and sense- 

 spots, which seem in themain to be arranged in the following way. The immovable 

 finger bears anteriorly two basal tactile hairs, one median dorsal and one placed a 

 little in front of and below this, in addition to about ten sense-spots arranged in a 

 row between three proximal hairs; posteriorly two basal, one median 

 and one almost terminal tactile hair in addition to two proximal 

 sense-spots are found. The movable finger has anteriorly no pro- 

 minent sense-spots, but posteriorly four, placed near to the base, in 

 addition to two basal, three median and a single terminal tactile 

 hair. The trochanter, which has a moderately long and well defined 

 stalk, is 1-6 longer than broad and narrower than the femur; its 

 anterior margin is beyond the stalk very moderately convex, almost 

 straight, while the posterior is produced into an obtusely pointed 

 triangular process, almost perpendicular on the stalk, but gradually 

 slanting towards the extremity; the dorsal surface is produced into 

 a very high conical, obtusely pointed tubercle, which is directed up- 

 wards and backwards, being so high, that the trochanter is distinctly 

 deeper than broad, measured from the tips of the tubercles to the 

 ventral and anterior margins respectively, and as deep as the femur; 

 the outlines of the trochanter, as looked at from in front, are obtusely 

 acute-angled dorsally with the distal steeper slope longer than the proximal, mer- 

 ging into the shallow concavitj' of the stalk. The femur, which has a long but 

 not very well marked stalk, is 25 longer than broad and a little longer but 

 distinctly narrower than the tibia; the anterior and ventral outlines are almost 

 straight from base to tip, while the posterior and especially the dorsal margin are 

 beyond the stalk abruptly convex and then very moderately so. The tibia, which 

 is 2-9 longer than the extremely long and slender stalk, is 2'1 longer than broad; 

 it is anteriorly beyond the very shallow notch of the stalk rather abruptly and 

 strongly convex; the posterior margin has beyond the slightly marked condylus a 



Fig. 22. 



C/i. navigator 



11. sp.; cf; 'eft 



palp ill anterior 



view : x 48. 



