86 A RE-EXAMINATION OF AU.STKALIAN PYCNOGOKIDA, 



manifestly incomplete. The terminal joints are rolled up 

 and sesim to be provided with long hairs. 



Legi;. — First coxa is of normal length, second about 

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

 coxcB 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 paii- of 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 subsidiary spines at their base. In nearly oveay 

 case the simple looking spines on the coxa* and femiir are 

 found under the highest powers to be verv 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 posterior. Each spine consists of two 

 segments. The proximal of these is long and cylindrical 

 Avith large processes and also possessing a microscopic serra- 

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

 i}' toothed. 



The second tibia is about equal in length to the fir.st 

 tibia but is slenderer. It has about fifteen compoimd 

 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 sixrface spination con- 

 sisting of fine spines arranged in approximately longi- 

 tudinal rows. 



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

 soine simple ventral spines. 



Propodus 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 di.stal 

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

 are rudimentary. 



The genital aperfu?rs, female, occur on the second 

 coxae of all the legs. 



