SUMMARY OF RESULTS. 
511 
numerous than the pelagic species, yet the individuals are relatively very few in number, Station 157. 
the list having been compiled from the examination of a very large quantity of the 
deposit. While the shells of the pelagic forms are very small when compared with those 
found in tropical areas, on the other hand, the Miliolidae, Astrorhizidse, Lituolidse, and 
other bottom-living forms are represented by very large and beautiful forms. Some 
specimens of Miliolina are one-eighth of an inch in diameter ; specimens of Reophax 
and Rhabdammina are over an inch in length. Among the arenaceous species there are 
many interesting illustrations of the mode in which these Rhizopods select and arrange 
the various particles in the deposit to form their tests. Astrorhiza crassatina here forms 
its test almost exclusively of the spherical Radiolarian Cromyosphsera antarctica ; 
Storthosphsera selects the finest mineral particles, with an occasional larger particle of 
quartz or palagonite : one form selects only the shells of the pelagic Foraminifera, and 
another only the smallest Diatomaceae ; Reophax nodulo.sa makes use of many large 
Coscinodisci, arranging them flatways over the surface, and Rhabdammina abyssorum 
forms its tube of the larger angular fragments of quartz, felspar, magnetite, and other 
mineral particles. 
Biloculina depressa, d’Orbigny. 
„ „ var. murrhyna , Schwager, 
„ irregularis, d’Orbigny. 
„ ringens (Lamarck). 
„ sphsera, d’Orbigny. 
Miliolina circularis (Bornemann) (!). 
„ fichteliana (d’Orbigny). 
„ oblonga (Montagu). 
,, seminulum (Linne). 
„ venusta (Karrer). 
Keramosphmra murrayi, Brady. 
Astrorhiza crassatina, Brady. 
Pelosina rotundata, Brady (?). 
Storthosphsera sp. ('!). 
Bathysiph on fih f ormis, Sars (?). 
Hyperammina vagans, Brady. 
Rhabdammina abyssorum, Sars. 
Rhizammina algssformis, Brady. 
Reophax adunca, Brady. 
„ ditjlugiformis, Brady. 
„ nodulosa, Brady. 
„ pilulifera, Brady. 
,, scorpiurus, Montfort. 
Haplophragmium latidorsatum (Bornemann). 
„ turbinatum, Brady. 
Placopsilina vesicularis, Brady. 
Thurammina albicans, Brady (?). 
„ compressa, Brady. 
„ papillata, Brady. 
Hormosina ovicida, Brady. 
Ammodiscus charoides, Jones and Parker. 
Trochammina pauciloculata, Brady. 
Webbina clavata, Jones and Parker. 
„ hemisphserica, Jones, Parker, and Brady. 
Cyclammina cancellata, Brady. 
Verneuilina pygmssa, Egger. 
Gaudryina pupoides, d’Orbigny. 
Clavulina communis, d’Orbigny. 
Pleurostomella brevis, Schwager. 
„ (!) sp. 
Qassidulina bradyi, Uorman. 
,, crassa, d’Orbigny, 
„ subglobosa, Brady. 
Lagena alveolata, Brad}'. 
„ botelliformis, Brady. 
,, globosa (Montagu). 
,, leevigata (Reuss). 
„ Ixvis (Montagu). 
Nodosaria communis, d’Orbigny. 
Vagimdina linearis (Montagu). 
Cristellaria convergens, Bornemann. 
,, crepidida (Fichtel and Moll). 
Polymorphina angusta, Egger. 
,, thouini, d’Orbigny. 
XJ vigor ina asperula, Czjzek. 
„ pygmseci, d’Orbigny. 
x Globigerina bulloides, d’Orbigny. 
x ,, „ var. triloba, Reuss. 
