66 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 



mineral particles are too small to be accurately determined, with the 

 exception of small particles of volcanic glass and plagioclase ; the determina- 

 tion of what appears to be augite is doubtful. 



Fine Washings (39.60 per cent), rich brown, very flocculent clay, con- 

 taining many fragments of siliceous organisms, and a very few minute min- 

 eral particles. 



The following is a list of the species of Foraminifera observed in the 

 deposit from this station : — 



Biloculina ringeiis (Lamk.). 

 " depressa, d'Orb. 



" " var. serrata, Brady. 



" elongata, d'Orb. 



Miliolina venusta (Kar.). 



" ohlonga (Montag.). 

 Batlujsiphon filiformis, Sars. 

 Hyperammina raniosa, Brady. 

 Jthizavimina algceformis, Brady. 

 Reophax distans, Brady. 



" dentaliniformis, Brady. 

 Haplophragmium glohigerinifoi-me (P. & J.). 

 Hormosina globulifera, Brady. 

 Ammodiscus shoneanus, Sidd. 



" charoides (J. & P.). 



Wehhtna clavata, J. & P. 

 Gaudryina pupoides, d'Orb. 

 Clavulina communis, d'Orb. 

 Bulimina aculeata, d'Orb. 

 Virgulina schreibersiana, Czjzek. 



" sqiiamosa, d'Orb. 

 Pleurostomella brevis, Schw. 

 Cassidulina bradyi, Norman. 

 " Icevigata, d'Orb. 



" subglobosa, Brady. 



Lagena acuta (Rss.). 

 " " alveolata, Brady. 

 " feildeniana, Brady. 

 " marginata (W. & B.). 

 " sulcata (W. & J.). 

 " gracillima (Seg.). 



Nodosaria calomorpha, Ess. 

 Polymorphina longicollis, Brady. 

 " sorona, Rss. 



" angusta, Egger. 



Uvigerina asperula, Czjzek. 

 " brunnensis, Kar. 



Globigerina dubia, Egger. 



" conglobata, Brady. 



" inflata, d'Orb. 



" dutertrei, d'Orb. 



Orbulina universa, d'Orb. 

 PuUenia obliquiloculata, P. & J. 



" sphceroides (d'Orb.). 

 Sjjhcei-oidina bidloides, d'Orb. 



" dehiscetis, P. & J. 



Discorbina araucana (d'Orb.). 

 Tntncatulina tenera, Brady. 



" pygma'a, Hautk. 



" haidingerii (d'Orb.), var. 



Puloimdina exigua, Brady. 



" menardii (d'Orb.). 



" " var. 



" fimbriata, Brady. 



Pulviiiulina tumida, Brady. 



" pauperata, P. & J. 



" crassa (d'Orb.). 



" favus, Brady. 



Rotalia soldanii, d'Orb. 

 Nonionina umbilieatula (Montag.). 

 " pompilioides (F. & M.). 



No. 43. Station 4719, 14th January, 1905. 

 Lat. 6° 29.8' S. ; long. 101° 16.8' W. ; depth, 2285 fathoms. 



RED CLAY : ^ plastic and sticky, dark brown, but mottled with yellow 

 patches ; it contains no macroscopical elements ; when dried, not so coher- 



^ For Dr. Caspari's remarks on this deposit see Appendix, p. 167. 



