With C. Hedley’s 
Conin line: 
THE MOLLUSCA OF FUNAFUTI. 
(SUPPLEMENT,) 
By CuHaries HeEpLey, 
Conchologist, Australian Museum. 
In the year 1897, a second, and in 1898, a third expedition visited 
the Atoll of Funafuti in prosecution of the attempt to carry a 
bore through the coral formation. The mollusca herein described 
were obtained by these parties, chiefly by deep dredging, and were 
remitted to the Australian Museum by the Local Funafuti 
Committee of the Royal Society. This material reached the Writer 
too late for incorporation in the body of this Memoir. The results 
of a study of it are accordingly presented in this appendix. 
This material is of importance since it illustrates a side of the 
Funafuti zoology which I had little opportunity of investigating 
personally, viz., that of the deeper water. Dredgings carried out 
by Mr. G. H. Halligan in one hundred and fifty fathoms, and again 
in two hundred fathoms, produced results of especial interest. 
In the latter depth he discovered a bed of the typical “‘Pteropod 
Ooze.” The sample of his dredgings submitted to me, might have 
stood for the portrait of that deposit figured by Murray and 
Renard.* 
This ooze has been chiefly studied in the Atlantic, and though 
its equal distribution in the Pacific is a matter of course, the 
present record is an interesting extension of the known range. 
But the chief claim that this deposit has on our attention is 
that it appears in water of less depth than in any instance known 
heretofore. The least depth in which the “Challenger” obtained 
Pteropod Ooze was in 390 fathoms, the greatest 1,525 fathoms, 
the average being 1,044 fathoms, + 
The following species already noted as from surface waters again 
occurred in greater depths: 
‘Teinostoma tricarinatum—150 fathoms off Beacon Islet (Funa- 
manu), and 36 fathoms north of Pava Islet. 
Cisonella ovata—150 fathoms off Beacon Islet (Funamanu). 
Stomatella sanguinea—36 fathoms N. 30° West of Pava, 45 — 52 
fathoms off Tutaga Islet. 
*Murray and Renard—Chall. Rep., Deep Sea Deposits, 1891, pl. xi. fig. 6, 
+ Murray and Renard—loc. cit., p. 225. 
