OF THE KERGUELEN REGION OF THE GREAT SOUTHERN OCEAN. 



435 



Ampliilectus pilosus (2). 

 Tetilla grandis (2). 

 Promachocrinus kerguelensis (2). 

 Asterias meridionalis (3). 



,, (Smilasterias) scalprifera 



(2). 

 Gnathaster dongatus (4). 



„ meridionalis (4). 



Leptoptych aster lierguelenensis (2). 

 Perknaster fuscus (2). 

 Ophiacantha imago (3). 

 Ophioeonis antardica (2). 

 Ophioglyplta deshayesi (3). 



„ liexactis (2). 



Cucumaria Icevigata (2). 

 Psolus incertus (3). 

 Amphiporus marioni (2). 

 Cerebratulus corrugatus (2). 

 Lagisca antardica (2). 



Nephtliys trissophyllus (2). 

 Cythere foveolata (2). 



,, subrufa (2). 

 Cytheropteron assimile (2). 

 Xestoleberis setigera (3). 

 Iphimedia pacifica (2). 

 Lifjeborgia consanguinea (2). 

 (Ediceroides rostrata (2). 

 Phoxocephalus kergueleni (2). 

 Astaeilla marionensis (2). 

 Cardita astartoides (2). 

 Davila (?) umbonata (2). 

 Kellia nuculina (2). 

 Mytilus meridionalis (2). 

 Thracia meridionalis (2). 

 Cancellaria (Admete) specular is 



(2). 

 Natica fartilis (3). 

 Neobuccinum eatoni (2). 



Neobuccinum vestitum (2). 

 Patella kerguelensis (2). 

 Pleurotoma (Thesbia) trartslucida 



(2). 

 ,, (Typldomangelia) 



Jluctuosa (2). 

 Provocator pulcher (2). 

 Rissoa (Setia) principis (2). 

 Struthiolaria mirabilis (2). 

 Trochus (Margarita) chan^ms (2). 

 ,, (Pliot inula) expansus (2). 

 Troplion declinans (2). 

 Turritella austrina (2). 

 Bugula longissima (2). 

 Cellularia quad rat a (2). 

 Smittia marionensis (2). 

 Yincularia gothica (2). 

 Waldheimia lierguelenensis (3). 



b. Species extending outside the shallow -ivater area of the Kerguelen Region. 



We come now to consider those species which have a wider distribution, and extend 

 into other regions of the ocean outside the area represented by these dredgings. The 

 number of such species is 169 (or 32 per cent, of the total number of species and varieties 

 found in these dredgings), and they may be divided into groups according to their dis- 

 tribution in the trc^ical and extra-tropical regions of the ocean. Thus we find that of 

 these 169 species, 



100 species (or 60 per cent.) are known to occur in other regions south of the southern 



tropic (see List IVc.) ; 

 33 species (or 1 9 per cent. ) are known to occur in regions both south and north of the 



tropics, but not in the intervening tropical zone (see 



List IVc?.) ; 

 20 species (or 12 per cent.) are known to occur in regions both south of and within the 



tropics, but not to the north of the northern tropic (see 



List IVe.) ; and 

 16 species (or 9 per cent.) are known to occur in regions both south of, within, and 



north of the tropics, and some of them may be regarded 



as cosmopolitan, or almost cosmopolitan (see List IV£). 



We may now proceed to discuss in some detail the distribution of these 169 species, 

 according to the groups given above, indicating briefly the geographical and bathymetrical 

 distribution of each species outside the area represented by these dredgings. 



