86 A RE-EXAMINATION OF AUSTRALIAN PYC'NOGONIDA, 



maaiifesth^ incomplete. The tei-miiial joints are rolled up 

 and seem to be provided with long hairs. 



Legs. — First coxa isi of normal length, second about 

 twice as long — third a little longer than the first. All the 

 coxae are narrow proximally and distally expanded. The 

 second coxa bears a well developed tubercle at its distal 

 end, on which opens the female genital pore. This tuber- 

 cle bears two long simple spines. The first and third coxae 

 have similar tubercles but not so well developed. 



Femur is long and stout, slightly expanded at the dis- 

 tal end. Its spinous armature is very regular in arrange- 

 ment. At one quarter the length from the proximal end 

 there is on the ventral side a pair ol small spines. About 

 half way there are two larger spines each on a tubercle. 

 At the distal dorsal angle there are a couple of pairs on 

 tubercles, one of which is particularly large. All these 

 have small su^bsicliary sjjines at their base. In nearly eveiry 

 case the simple looking spines on the coxae and femur' are 

 found under the highest powers to be very minutely tooth- 

 ed. 



First tibia is stout and not quite as long as the femur. 

 It bears from ten to fifteen compound spines on the dorsal 

 side. They are larger and more numerous on the anterior 

 legs than on the j^'^sterior. Each spine consists of two 

 segments. The proximal of these is long and cylindrical 

 with large processes and aJso possessing a microscopic serra- 

 tion. The distal segment is long, sharp, and microscopical- 

 ly toothed. 



The second tibia is about equal in leingth to the first 

 tibia but is slenderer. It has about fifteen compound 

 spines on its dorsal surface. These decrease in size and 

 become simpler in structure towards the distal extremity. 

 In addition to the spines mentioned above the first and 

 second tibia? possess a more obscure surface spination con- 

 sisting of fine spines arranged in approximately longi- 

 tudinal rows. 



Tarsus is small, dorsal spine is absent, but there are 

 some simple ventral spines. 



Proipodus is strong and curved with about a dozen long 

 simple spines on the dorsal surface. The sole is armed 

 with a number of spines varying in number from twenty- 

 one on the anterior foot to fifteen on the posterior. These 

 are re-curved spines, decreasing in size towards the distal 

 end. Claw is long strong and curved. The auxiliary claws 

 are rudimentary. 



The genital ajyertures, female, occur on the second 

 coxfe of all the legs. 



