FORAMINIFERA OF THE FUNAFUTI ATOLL. 413 
In addition to the 278 species and varieties above recorded, 
from the sands of the reef-slopes, the lists previously given, 
exclusive of the lagoon fauna, include 19 other forms, namely :-— 
Nubecularia Bradyi, N. lacunensis, Biloculina wrregularis, 
Spiroloculina canaliculata, Miliolina trigonula, M. Bouweana, 
M. tricarinata var. Bertheliniana, Peneroplis (Monalysidiurv) 
eylindracea, Orbitolites complanata var. plicata, Verneuilina 
Davidiana, Discorbina tabernacularis, D. acuminata, Planorbu- 
lina acervalis, P. retinaculata, Carpenteria serialis, Oalcarina 
Spengleri, C. hispida var. pulchella, Tinoporus baculatus var. 
Jlorescens, and Polystomella striatopunctata; thus bringing the 
total number to 292 species and varieties. 
VI. Nores on the Disrripution of some of the Sprctzs of 
ForaMINIFERA from the RuEr-sLopE at FUNAFUTI. 
The shallow-water deposits of modern coral-reef areas are 
generally believed to contain, as a rule, few species of Forami- 
nifera, but what is lacking in variety is usually compensated for 
by quantity. The exceptions to this rule are the faunas recorded 
from Raine’s Islet, Torres Straits, and the present one from 
Funafuti. At the first-named locality the total number of 
Foraminifera found by Brady was 255 species and varieties. The 
number now recorded from the outer reef and beach of Funafuti 
amounts to 292. Ata casual glance, however, the beach-sands, 
even at Funafuti, are apparently composed of about half a dozen 
forms, and it is only by a detailed examination of samples taken 
in the locality from various places and depths that we have been 
enabled to record such a rich foraminiferal fauna. 
It will be as well to consider the distribution of certain of the 
Foraminifera met with to the present time on the reef-slope of 
Funafuti under three heads :—the encrusting or reef-forming 
foraminifera; the bottom-living forms; and the pelagic species. 
The Encrusting Foraminifera. 
Those which call for special notice on account of their profuse 
growth are Carpenteria rhaphidodendron and Polytrema planum. 
The depth at which C. rhaphidodendron finds its habitat is 
very clear from the records obtained, for it was frequently found 
in two localities at. depths of 60 and 80 fathoms. Fragments 
were algo recorded from a sample at 180 fathoms; a doubtful 
LINN. JOURN.— ZOOLOGY, VOL. XXVIII. 29 
