12 MR. F. CHAPMAN on FORAMINIFERA 
This curious little species is quite distinct from the other 
forms of Discorbina found at Funafuti. It appears to have had 
its origin in a form similar to D. pileolus, ’Orbigny *, whieh it 
somewhat resembles in the conical portion—a form common in 
the shallow waters of the Pacific. ; 
D. tuberocapitata is rare, and has occurred in two samples as 
far as they have been at present examined. In the deep boring 
at Funafuti (David, 1897) at a depth of 65 feet; and in the 
lagoon-boring at 50 feet below the floor of the lagoon. 
CaARPENTERIA, Gray [1858]. 
CaARPENTERIA UTRICULARIS, Carter. (Pl. 2. fig. 4; Pl. 4. 
figs. 3, 4.) 
Polytrema utriculare, Carter, 1876, Ann. Mag. Nat. Hist. ser. 4, 
vol. xvii. p. 210, pl. xiii. figs. 11-16. 
Carpenteria utricularis, Carter, 1877, Ann. Mag. Nat. Hist. ser. 4, 
vol. xx. p.176; Brady, 1884, Report ‘Challenger,’ vol. ix. p. 678, pl. xcix. 
figs. 6, 7, pl. c. figs. 1-4; Egger, 1893, Abhandl. bayer. Akad. Wiss., 
math.-phys. Cl. ii. vol. xviii., Abth. ii. p. 246, pl. xxi. fig. 18. 
The chief characteristics of this species are the strongly 
inflated segments, the occasional plurality of apertures (basal 
as well as terminal), and the coarsely reticulated structure of the 
walls of the test. In sections the shell-wall is seen to have a 
papillate (rugose) external surface. The colour of C. utricularis 
in the Funafuti specimens is sometimes brown or ash-grey, but 
generally speaking the specimens are of a vivid apple-green 
tint, probably due to the presence of a symbiotic alga in the 
coarse structure of the test. The apertural portion of the shell 
is often prolonged into a slender salient tube. 
C.utricularis is apparently the commonest form of Carpenteria 
dredged at Funafuti. 
This species has been recorded from the Pacific, Cape Verde 
Islands, the West African coast, the Mauritius, and the West 
Indies. Brady records it at depths ranging from 16 to 350 
fathoms. In the samples collected round Funafuti by Prof. 
David and Mr. Finckh, I have found C. utricularis in the 
following :— 
North of Pava, 57 fathoms, on a gorgonid and a millepore. 
* Valvulina pileolus, Voyage Amér. Mérid. 1839, vol. v. pt. 5: ‘ Foramini- 
féres,” p. 47, pl. i. figs. 15-17. 
Discorbina pileolus (d’Orbigny), Brady, Rep. Chall. vol. ix. 1884, p. 649, 
pl. Ixxxix. figs. 2-4. 
