ON FOUR PYCNOGONIDS, DREDGED DURING 

 THE CRUISE OF THE CHALLENGER 



(iiivestigated and described after the completion of the Report) 



WITH AN APPENDIX 



BY 



D R . P. P. C. HOEK 



With Plates II and III 



Long after I had finished the description of the Pycnogonids 

 collected during the cruise of the »Challenger", Professor G. O. 

 Sars of Christiania sent me a few Pycnogonids which he had 

 met with when working out the Cutnacea of the same English 

 Expedition. For several years it was an utter impossibility for me 

 to look after these specimens. On doing so last autumn, while 

 engaged in finishing the description of the Pycnogonids of the 

 Willem Barents Expeditions 1880 — 84, I discovered that the said 

 Pycnogonids belonged to new species. T have been authorised by 

 Dr. John Murray, the director of the collections and editor of the 

 Challenger- Report, to give here short descriptions of these new forms. 



1. Pallene dimorpha, n. sp. 



(PI. II, fig. 1—6.) 



A number of specimens belonging to an interesting and, as far 

 as I can make out, new species of the genus Pallene, Johnston , 

 were collected near Kerguelen Island. I propose for this species 

 the name Pallene dimorpha ; I choose this name as I never met 



