PYCNOGONIDS 267 



what from the inner side of the first. Both joints unarmed, except as 

 noted above. 



Palpi 8-jointed, longer than proboscis: j.\ short and broad, and apt 

 not to be seen when the animal is viewed from above; j.z much longer 

 and more slender, enlarging somewhat distally ; 7.3 short and small ; j.\ 

 about equal toy. 2 ; jj.c^ to 8 small, rounded, rather densely armed on 

 the ventral side with strong bristles ; the preceding joints with only 2 or 

 3 bristles. 



Ovigera of female about as long as palpi: j.\ short, broad, longer on 

 inner side ; y.2 longer, arising well down on the outer side of/.i, triangu- 

 lar, broad at the distal end; y.3 equals/. i ; j.\ somewhat longer, about 

 equals y.2; 7.5 equalsy.4, broader; jj. 6, 7, 8, 9, 10 are usually turned 

 back on the basal joints so that the appendage forms a simple hook ; the 

 diameter gradually decreases from /s to /lo; yy.6, 7, 8 rounded; /.q 

 longer ; y. i o very small and not always very distinctly marked oflE. The 

 tenth joint is armed with 2 feather-like denticulate spines; there are 

 apparently! 2 also on eachy.9 andy.8, while there is at least i on y.7. 

 Joint 9 has a strong, straight, backwardly pointing spine on the dorsal 

 side; on the other distal joints there are a few short, simple spines; 

 the proximal part is unarmed. Oviger of male about twice the size of 

 that of the female ; the general form of the joints much the same, except 

 that they are much longer in proportion to the width ; arrangement of 

 denticulate spines about as in female ; corresponding long spine on back 

 of y.9 ; buty/'.4 to 8 have quite a number of long slender bristles, which 

 are especially abundant on the outer side ofy.6. There is also a row of 

 some 8 or 9 short, stout, recurved spines on the side ofy.5, while the 

 proximal joints of the oviger have more of a tendency to be hairy than 

 in the female. Terminal part of oviger strongly incurved. 



Ova were observed in the femoral joint of the female, but no external 

 egg-masses were found. 



Legs comparatively rather stout, appearing especially so in the female, 

 where the femoral joint is very broad. First coxal joint short, with a 

 long, slender dorsal protuberance; c.2 only a little longer than c.\\ ^.3 

 equals c.\ ; /., /.i, and A 2 each about equal in length to coxal region ; /. 

 has at its dorsodistal corner a conical protuberance with a short spine ; 

 ts.\ small, triangular; is. 2 strongly developed, somewhat arched; heel 

 not prominent, but there are 3 or 4 strong spines at this place ; sole 

 with a series of smaller spines, while there is a row of more slender 



1 The margins of these spines are so delicate and thin that when they chance to lie 

 over or under the appendage on the slide it is exceedingly difficult to distinguish them 

 from ordinary simple spines. 



