1030 ON THE PYCNOGONIDA OF THE AUSTRALIAN COAST, 



the sixth is scarcely a fifth of the length of the fifth ; the seventh 

 is a little longer than the sixth and slightly narrower ; the eighth 

 is rather longer and narrower than the seventh ; the ninth is equal 

 in length to the seventh, Imt narrower ; the tenth is scarcely two- 

 thirds of the length of the ninth. The third pair of appendages is 

 a little longer than the second ; its three first joints are short and 

 stont, while the fourth is very long, equalling in length the third 

 joint of the second pair of appendages, and very slender, expanding 

 a little towards the distal end ; the fifth joint is short ; the sixth 

 as long as the fourth, very slender throughout the greater part of 

 its extent, but a little expanded towards the distal end ; the 

 seventh, eighth and ninth joints are nearly equal, short, slightly 

 curved, bordered with a close line of hairs ; the tenth is rather 

 smaller, ornamented internally with a dense fringe of hairs and 

 armed with a terminal claw, forming a cheliform termination to 

 the appendage. The appendages of the fourth, fifth, sixth 

 and seventh pairs are very long and slender, much longer than 

 the body ; the three basal joints are short and stout, the fourth 

 very long and very slender in the greater part of its extent, 

 though somewhat thickened distally. The fifth joint is about equal 

 in length to the fourth, slender and a little thickened distally ; the 

 sixth joint is a little shorter than the fifth and of nearly uniform 

 diameter throughout ; the seventh is scarcely half the length of the 

 sixth ; the eighth is about equal to the seventh ; the claw is between 

 half and two-thirds of the length of the eighth joint, nearly 

 straight, acute. 



The length of the body inclusive of the proboscis is three-eighths 

 of an inch ; of the legs seven-eighths. 



I have only one specimen of this well-marked species, found in 



Port Denison. 



Genus. PALLENE. 



Pallene pachyciieira, n. sp. 

 [Plate LVIL, figs. 6-9.] 

 The body of this species is rather short and thick, the interseg- 

 mental lines very distinct, thelateral processes closely approximated 

 to one another. The proboscis with the neck is a little shorter than 



