148 On the Ff/cnogonida collecled Inj the 'Gauss' 



Tanystylum styllgeimm. 



Ni/mphon styligerum, Miers, Ann. & Mag. Nat. Hist. (4) xvi. (1875). 

 famjstylum styligerum, Miers, Phil. Trans, vol. 168 (1879). 



A number from Kerguelen Island. 



Rhynchotliorax nustrah's. 

 Bhynchothorax australis, Hodgson, ' Discovery.' 



Described by me from a single specimen taken by the 

 * Discovery ' in the Murdo Sound. A very large number 

 -were taken by the 'Gauss' throughout its stay in winter- 

 quarters. These reveal the fact that the close approxi- 

 niation of the origin of the lateral processes is simply a 

 sexual matter ; in the males they are almost, if not quite, 

 •widely separated. From the number obtained it is not a 

 little surprising that none of them carry any eggs or young. 



Pycnogonum galni. 

 Pycnogonum gaini, Boiivier, ' Pourquoi Pas.' 



Of this fine species three adult specimens occur in the 

 ' Gauss ' collection^ together with a number of postlarval 

 forms. 



Its specific character is the existence of four mid-dorsal 

 tubercles, three of them the exaggerated apices of as many 

 transverse ridges and tubercles on the lateral processes. 



Winter-quarters. 



Besides the foregoing antarctic species, the two following 

 ■were obtained by the 'Gauss' in temperate or tropical 

 climes : — 



Tanystylum faidovensis. 



Body discoid, smooth ; proboscis very stout, tapering, and 

 nearly as long as body. 



Cheliferi reduced to two minute spinose stumps. 

 St. Paul Island ; two specimens. 



AnoplodactyJus mantimus. 



Lateral processes scarceh'^ so much as widely separated. 

 Abdomen short and directed upwards. Ocular tubercle trun- 

 cate ; eyes well developed. Leg : femur the longest joint, 

 the second tibia a little shorter, and the first still shorter — 

 differences small. 



Sargasso Sea ; a few !*pecimens. 



