OF THE KERGUELEN REGION OF THE GREAT SOUTHERN OCEAN. 



469 



Pityomma piniferwm, Haeckel. 

 Cromyomma perspicuum, Haeckel. 

 ithizosphwra trigonaeantha, Haeckel. 

 „ antarctica, Haeckel. 



b. Prunoidea. 



Cromyocarpus quadrifarius, Haeckel. 

 Cromyatractus tetraphractus, Haeckel. 

 Spongurus cylindricus, Haeckel. 

 Spongocora cincta, Haeckel. 



c. Discoidea. 



Porodiscus Jiustrella, Haeckel. 

 ,, heterocyclic, Haeckel. 

 „ spiralis (Ehrenberg). 

 Ommatodiscus stbhrii, Haeckel, 

 ,, Icevigatus, Stdhr. 



Stylodidya multispina, Haeckel. 

 Rhopa 1 astrum irregulare, Haeckel. 

 Eucliitonia muelleri, Haeckel. 

 Spongodiscus resurgens, Ehrenberg. 



„ spiralis, Haeckel. 



Spiongopyle osculosa, Haeckel. 



,, setosa, Haeckel. 

 Stylotrochus antarcticus, Haeckel. 

 ,, challengeri, Haeckel. 



Spongotrochus murrayi, Haeckel. 

 „ wyvillei, Haeckel. 



,, moseleyi, Haeckel. 



,, willemoesii, Haeckel. 



„ scutella, Haeckel. 



d. Larcoidea. 



Stijpolarcus spongiosis, Haeckel. 

 Larcospira oliva, Haeckel. 



II. ACANTHARIA. 



Pantopelta icosaspis, Haeckel. 

 III. Nassellaria. 

 a. Plectoidea. 

 Hexaplagia antarctica, Haeckel. 



b. Spyroidea. 



Tripospyris eucolpos, Haeckel. 

 Didyospyris tetradoma, Ehrenberg. 

 ,, enneastoma, Haeckel. 



c. Botryodea. 



Androspyris aptenodytes, Haeckel. 

 Botryocella borealis, Ehrenberg. 

 Botryopyle cribrosa (Ehrenberg). 

 Botryocyrtis quinaria, Ehrenberg. 

 Botryocampe inflata, Ehrenberg. 



d. Cyrtoidea. 



Cyrtocalpis ovulum, Haeckel. 

 Cornutella clathrata, Ehrenberg. 



„ annulata, Ehrenberg. 



Cornutanna orthoconus, Haeckel. 

 Halicapsa hystrix, Haeckel. 

 Bidyoceplialus antarcticus, Haeckel. 

 Dicolocapsa megacephala, Haeckel. 

 Didyopjhimus antarcticus, Haeckel. 

 Theocorys plutonis, Haeckel. 

 Litliostrobus bicornis, Haeckel. 



,, cornutella, Eutschli. 



Tlieocalyptra cornuta (Ehrenberg). 

 Lithomitra lineata (Ehrenberg). 

 Eucyrtidium chrysalidium, Haeckel. 



IV. Ph.eodaria. 



Auladinium actinosphcerium, Haeckel. 

 Sagenoscena penicillata, Haeckel. 

 Aidospluera bisternaria, Haeckel. 

 Auladrum dichoceros, Haeckel. 

 Aulodietyum hydrodidyiwi, Haeckel. 

 Cannospluera antarctica, Haeckel. 

 Challengeria naresii, Murray. 

 ,, trifida, Haeckel. 



Conchasma hippurites, Haeckel. 



Of the 81 species enumerated, 57 species (or 70 per cent.) are not recorded in the 

 Challenger Report from any other locality, while 21 species (or 26 per cent.) are repre- 

 sented in the tropical Pacific (11 species both at the surface and bottom, 7 species at the 

 bottom only, and 3 species at the surface only), 3 species are represented in the South 

 Atlantic (2 at the surface and 1 at the bottom), 2 species are recorded from the bottom 

 in the tropical Atlantic (West Indies), and 1 species each from the bottom in the North 

 Pacific and South Pacific respectively. 



Two species (Cenosphcera ■papillata and Thecosphcera diplococcus) occur outside this 



