838 
THE VOYAGE OF -H.M.S, CHALLENGER. 
collections, in addition to a number of new forms, have furnished material for a complete 
revision of the species and varieties. Sphceroidina, Pullenia, and Candeina, aforetime 
believed, under all circumstances, to inhabit the bottom ooze alone, are now known 
to have pelagic representatives. 
“There is but little that calls for remark in connection with the Rotalidse and 
Nummulinidse. One or two species of Pidvinulina have been added to the pelagic 
list ; and Cymbalopora bulloides, with its large balloon-like final segment, has also been 
taken at the surface. But in connection with these families, the gain to science has been 
chiefly in the direction of new species and varieties, and in facts illustrative of the 
geographical distribution of forms already known.” 
Fig. 307 . — Pidvinulina menardii (d’Orbigny), from the tropical deposits. 
The pelagic Foraminifera were under almost daily observation during the cruise, 
and have been frequently referred ' to in the preceding chapters. Among the species 
recognised by Mr. Brady in his Report, the following have a pelagic habitat: — 
Globigerina bidloides, d’Orb. 
,, „ var. triloba, Reuss. 
,, dubia, Egger. 
„ injlata, d’Orb. 
„ rubra, d’Orb. 
„ sacculifera, Brady. 
,, conglobata, Brady. 
,, cequ ilater alis, Brady. 
Orbulina universa , d’Orb. 
Hastigerina pelagica (d’Orb.). 
Pullenia obliquilocidata, P. & J. 
Sphceroidina deluscens, P. & J. 
Candeina nitida, d’Orb. 
Pulvinidina menardii (d’Orb.). 
„ „ var. tumicla, Brady. 
„ ccmariensis (d’Orb.). 
„ crassa (d’Orb.). 
„ miclieliniana (d’Orb.). 
„ pcitagonica? (d’Orb.). 
C gmbcdopora bulloides (d’Orb.). 
The last mentioned species ( Cymbalopora bulloides) was only found when in the 
neighbourhood of coral reefs, when it was sometimes very abundant in the surface 
gatherings. There were usually two sizes, as represented in fig. 304, the smaller ones 
being united into groups of four by a gelatinous matter. Another peculiarity of this 
species is that these surface specimens did not contain sarcode like that usually found in 
