THE DEPTH AND MAKINE DEPOSITS OP THE PACIFIC OCEAN. 115 



Station 57, 25th September, 1899. 

 Three miles from last position, north of Matahiva, Paumotu Islands ; 

 depth, 486 fathoms. 



CORAL SAND : gray, incoherent, granular ; has the appearance of having 

 been washed ; containing a few Pteropods, Heteropods, pelagic and bottom- 

 living Forarainifera, Alcyonarian spicules, Echinoid spines (some blackened 

 with manganese), Coral fragments, coccoliths, rhabdoliths, otoliths. 



Station 58, 25th September, 1899. 



Two and a half miles off west shore of Matahiva, Paumotu Islands ; 



depth, 624 fathoms. 



CORAL SAND : gray, granular, incoherent ; appears to have been washed ; 

 consists of Coral and MoUuscan-shell fragments, pelagic and bottom-living 

 Foraminifera, otoliths, small Lamellibranchs and Gasteropods {Pleurotoma), 

 Echinoid spines blackened with manganese, Alcyonarian spicules, coccoliths, 

 rhabdoliths, Tunicate spicules. 



Station 59, 25th September, 1899. 

 Four miles off southwest shore of Matahiva, Paumotu Islands ; 

 depth, 860 fathoms. 



PTEROPOD OOZE or CORAL SAND: gray, incoherent, granular; ap- 

 pears to have been washed ; consists of Pteropods, Heteropods, pelagic and 

 bottom-living Foraminifera, Coral fragments (some coated with manganese), 

 otoliths, Echinoid spines, small Gasteropods {Pleurotoma, etc.) and Lamelli- 

 branchs, Alcyonarian spicules, coccoliths, rhabdoliths, and Tunicate spicules. 



Station 60, 25th September, 1899. 

 Off south shore of Matahiva, Paumotu Islands ; depth, 1257 fathoms. 



GLOBIGERINA OOZE : cream colored, granular, incoherent ; appears to 

 have been washed ; consists of pelagic and bottom-living Foraminifera, 

 Echinoid spines, Alcyonarian spicules, Tunicate spicules, otoliths, small Coral 

 fragments, Polyzoa, Mollusc shells, with small Lamellibranchs and Gas- 

 teropods {Pleurotoma), fragments of Pteropods, coccoHths, and rhabdohths. 



