PYCNOGONIDS 



293 



joint, where it begins tapering gradually to the tip of the claw. Practi- 

 cally smooth except for a few very small bristles on the outer side of the 

 third joint. When not carrying eggs, the appendages commonly extend 

 outward and a little backward, then curve forward and in again toward 

 the middle line. The bending occurs particularly at the fourth and at 

 the eighth and ninth joints. 



Eggs small, carried on the ovigera in one (pi. xiv, fig. 1 5) or two (fig. 14) 

 large, wrinkled, cake-like masses, occupying the whole space under the 

 animal and extending so far that when looked at from below only the 

 legs from the fourth joint outward are visible, except the posterior pair, 

 which can usually be seen because the eggs are carried well forward. 



Legs stout : c. i broader than the lateral processes of the segments, 

 with the appearance of a dorsal notch on its outer border due to the 

 close approximation of two dorsal tubercles; c.2 rather smaller than c.\ ; 

 r.3 rather smaller than c.2 ; the 3 joints together in the third leg about as 

 long as the proboscis ; /. strongly developed, about two thirds as long as the 

 coxal region ; proximal half of the ventral surface considerably swollen (in 

 male as well as female), a rather weak dorsal tubercle at the distal 

 extremity; Ai about equal to/, but more slender ; /.a rather shorter than 

 Ai; ts.i very short, subtriangular ; ts.2 about as long as t.2\ cL less 

 than half as long as ts.2, rather strongly curved. On the dorsal surface 

 of/., and of t.\ and t.2, near their distal ends, there is a single compara- 

 tively strong spine; ventral side of /.2 beset with smaller spines at its 

 distal end, while the tarsal joints, especially the first, have their ventral 

 surfaces thickly beset with these short spines. 



The 1 1 females measured range from 4 mm. to 8 mm. ; the males 

 average somewhat smaller, the largest being but 6.3 mm. in length. 



SPECIMENS EXAMINED. 



Remarks. — This species was established by Ives from 5 female speci- 

 mens collected at San Diego, and it has not been recorded since that 



1 Collected "on rocks." Ten of the fourteen males in this lot were carrying egg-masses. 



