FORAMINIFEKA IN THE RAISED REEFS OF FIJI. 365 



kindly lent by Dr. G. J. Hinde for comparison, are very closely similar 

 to the Niue specimens. The only difference is that theAnticosti spicules 

 show in optical section slightly projecting tubercles which are not seen 

 in the great majority of the Nine spicules. But in a few of the latter 

 there are indications of the tubercles, especially in those seen in surface 

 view, as already mentioned. Dr. Hinde has isolated spicules from the 

 sandy material of the Funafuti boring. A few of these have long spines 

 and closely agree with the spicules of Leptoclinum figured by Professor 

 Herdman in his Challenger Report. The remainder are covered by 

 short tubercles (like the recent specimens from Anticosti), but probably 

 belong to the same species as the spiny ones, for Professor Herdman has 

 shown that two varieties do exist in the same animal in the case of some 

 recent species. The spicules in the Funafuti rock-sections are identical 

 with the Niue forms, so that these latter may be taken as belonging to 

 the genus Leptoclinum. 



