162 



MR T. V. HODGSON ON THE 



Iii a recent paper on the Pycnogonids of the Magellan Straits (14) it became 

 necessary to define that area, and I suggested the division of the Antarctic and Sub- 

 Antarctic regions into three provinces corresponding with the continents from which the 

 attack on those regions can be made. The limits are as yet purely arbitrary, being 

 defined by lines of longitude which may not hold good when our zoological knowledge of 

 these regions becomes greater than at present. The division suggested was as follows : — 



(1) Magellan Province, long. 20° W. to long. 130° W. 



(2) Australasian Province, long. 130° W. to long. 100° E. 



(3) Kerguelen Province (African), long. 100° E. to long. 20° W. 



The following list contains all the known species of Pycnogonida from the Antarctic 

 and Sub- Antarctic regions — a list which contains some seventy-two species, thirty-four 

 of which belong, as far as at present known, exclusively to the Antarctic area. Thirty 

 of them belong to the Sub-Antarctic region, and of these, seven find their way farther 

 northward. Those marked with an asterisk are contained in the Scotia collection. 



Ant- 

 arctic. 



Pycnogonum magellanicum, Hoek 

 „ magnirostre, Mobius 

 Phoxichilus australis, Hodgson . 

 Pallene dimorp/ta, Hoek 

 Pseudopallene cnrnigera, Mobius 

 „ australis, Hodgson 



Pallenopsis patagonica, Hoek 

 „ pilosa, Hoek 

 „ Jiuminensis, Kroyer 

 ,, glabra, Mobius 



,, villosa, Hodgson 

 ,, hiemalis, Hodgson 



„ lanata 



Anoplodactylus neglectus, Hoek 



,, petiolatus, Kroyer 



Nymphon gracile, Leach 

 ,, gracilipes, Miers 

 „ brachyrhynchum, Hoek 

 „ hamatum, Hoek . 

 ,, fuscum, Hoek 

 ,, meridionale, Hoek 

 ,, antarcticum, Pfeffer 

 ,, hiemale, Hodgson 

 ,, lanare, Hodgson. 

 ,, adareanum, Hodgson 

 !> frigidum, Hodgson 

 ,, tridentatum, Hodgson 

 ,, longicoxa, Hoek . 

 „ compaction, Hoek 

 ,, articular e . 

 ' Clixtonymphcn brevicaudatum, Miers 

 villosum, Hodgson 

 biarticulatum, Hodgson 

 rnendosum, Hodgson 

 austrah, Hodgson 

 ,, var. austrin 

 orwm,Hodg 



son 



Sub- 

 Ant- 

 arctic. 

 X 

 X 



* Chxtonymphon orcadense . 



* „ assirnile 



* Pentanymphon antarcticum, Hodgson 

 Leionymphon striatum, Mobius . 



grande, Pfeffer 

 gibbosum, Mobius . 

 minum, Hodgson . 

 Clausi, Pfeffer 

 australe, Hodgson . 

 glaciate, Hodgson . 

 spinosum, Hodgson 

 Ammothea Hoeki, Pfeffer . 



„ Wilsoni, Schimkewitsch 



* ,, communis, Bouvier . 

 ,, curculio, Bouvier 



Tanystylum styligerum, Miers 

 ,, Dohrnii, Pfeffer 



„ Chierchix, Schimkewitsch 



,, longicaudatum, Hodgson 



Austrodecus glaciale, Hodgson . 



Austroraptus polar is, Hodgson . 



Ascorhynchus glaber, Hoek 



Rhyncothorax australis, Hodgson 



Colossendeis gigas, Hoek 



* ,, leptorhynchus, Hoek 



„ gigas leptorhynchus, Hoek 



,, megalonyx, Hoek 



,, robust a, Hoek . 



„ gracilis, Hoek . 



,, australis, Hodgson . 



,, glacialis, Hodgson . 



,, frigida, Hodgson 



„ rugosa, Hodgson 



„ mage/lanica, Hodgson 



* ,, orcadensis 



* Decolopoda australis, Eights 



„ antarctica, Bouvier . 



Ant- 

 arctic. 



Sub- 

 Ant- 

 arctic. 



