110 
THE VOYAGE OF H.M.S. CHALLENGER. 
This presented the usual harbour-mud Rhizopod-fauna, with Rotalia beccarii, 
Polystomella crispa and Polystomella striatopunctata, Nonionina depressula 
and Nonionina scapha, Verneuilina schreibersii and Truncatulina lobatula, 
as the salient forms. 
Surface and Mid-water Collections. 
The following notes refer to some of the areas at which gatherings were made by means 
of the tow-net, and chiefly to those at which the specimens obtained were mounted, or 
preserved by other means, on the spot. When not otherwise indicated, the net was 
arranged so as to collect only the organisms inhabiting the surface-layer of the ocean, 
that is to say, those living at depths not greater than about fifty fathoms ; but in many 
localities the net was lowered much further in order to gather in addition the animals 
pertaining to the mid- water fauna. 
The different sections of the voyage, indicated by capital letters, correspond to the 
divisions, similarly lettered, of the foregoing list of bottom-dredgings. Very few pelagic 
Foraminifera have been preserved from the earlier portion of the Challenger cruise, but 
the North Atlantic is partially represented by gatherings made on the homeward voyage. 
F. North Atlantic ; from Madeira by the Canaries and Cape de Verde Islands to the 
Equator. 
August 13 and 14, 1873, corresponding to Stations 97 and 98. Off the coast of 
Africa, south of Cape de Verde Islands. Containing Globigerina bulloides, 
Orbulina universa, Pulvinulina menardii, Pulvinulina tumida, and Pulvinu- 
lina canariensis. 
August 16, 1873, corresponding to Station 100. African coast, west of Sierra 
Leone. Containing Globigerina bulloides, Globigerina rubra, Globigerina 
conglobata, Orbulina universa, Pullenia obliquiloculata, and Pulvinulina 
menardii. 
August 25, 1873, corresponding to Station 106. Mid- Atlantic near the Equator; 
surface down to 40 fathoms. Containing Globigerina bulloides, Globigerina 
dubia, Globigerina conglobata, Globigerina rubra, Globigerina sacculifera ; 
Orbulina universa, Sphceroidina dehiscens, Pullenia obliquiloculata, Pulvinu- 
lina menardii, Pulvinulina canariensis and Pulvinulina scitula (?) . “Tow- 
net at 40 fathoms ” furnishes a similar list of organisms. 
