418 MR. F. CHAPMAN ON SOME 
of boring in the Atoll. They represent the recent deposits 
obtained by dredging outside the Atoll at moderate depths for 
the most part, but many specimens were also selected from the 
dredgings in the lagoon, the beach-sands, the deep-sea deposits 
(not yet fully worked out), and the sands from the atoll-boring. 
The data attached to the specimens of the latter samples, as 
regards depth, are probably of not much value, since there must 
be considerable admixture of loose material in the bore-hole 
during the process of boring. 
The total number of species is 52, six of which are new. 
The commoner forms present many striking facts as to their 
variation at different depths and under dissimilar conditions. 
A large number of the species enumerated here have been 
described from the various groups of islands in the Pacific by 
Dr. G. 8. Brady, the remainder being known from widely 
scattered localities. The occurrence of the genus Limnicythere 
in the samples is noteworthy, on account of its freshwater habit. 
The valves were for the greater part empty, or other- 
wise mounted for the examination of the animal or their 
appendages, 
Section I. PODOCOPA. 
Family CYPRIDID @. 
Pontocyeris, G. S. Brady. 
Pontocypris ? FABA, Reuss, sp. 
Bairdia faba, Reuss, 1855, Kin Beitrag zur genaueren Kenntniss der 
Kreidegebilde Meklenburgs, Zeitschr. d. deutsch. Geol. Gesellsch. p. 278, 
DL xi tie. 2) 
Pontocypris? faba, Reuss sp., G. 8. Brady, 1880, Rep. Chall. Exped., 
Zool. pt. iii. p. 37, pl. i. figs. 4 a-d. 
Several valves were found in the material from Funafuti, 
generally comparable with those which show the greatest height 
of carapace in the ‘ Challenger’ series. 
From the first boring at Funafuti, near the surface (Sollas 
collection); lagoon dredgings, sample 18, 9 miles from the 
Mission Church, Funafuti (David coll.); beach-sand, Avalau 
Islet, Funafuti (Sollas coll.); dredgings W. of Tutanga, 200 
fathoms (Halligan and Finckh). 
