758 LIMESTONES AND TUFFS OF MALEKULA, N.H., 



spherical inside the flange, and this feature is constant in all the 

 specimens I have seen. 



vi. Summary of Results. 



The present study of the Malekula foraminiferal rocks has 

 brought to light some interesting facts in distribution. Chief 

 among these are : — 



(1) The occurrence of Trillina in the New Hebrides, a genus 

 already proved to exist in southern Australia and the Philippines, 

 which thereby seems to connect up the southern coast of Aus- 

 tralia with the outlying islands of eastern Australasia and 

 certain portions of the East Indian Archipelago, along which Hue 

 in Oli^'ocene and Miocene times there probably existed a shallow- 

 water area where such littoral forms could flourish. 



(2) The new species of AlveoUna found in the Malekula lime- 

 stone, although not previously described, had already been figured 

 from Javan Miocene limestones, and thus a relationship is shown 

 with the latter rocks. 



(3) By the discovery of Lepidocyclina angularis at Malekula, 

 already known from Miocene limestone in the Loo-Choo Islands, 

 off Japan, there is shown a further extension of the Miocene 

 shore-line as far north as Japan. 



(4) The two species of Iliogypsina, M. hurdigalensis and M. 

 coj7iplanata, are here found in rocks at about the same horizon, 

 although they are not actually associated in the same limestone 

 specimen, as was the case at Santo.* Thus the present occurrence 

 affords additional evidence of the contemporaneity of the two 

 species which elsewhere indicate strata of different ages. Samples 

 105 and 108 have three species of Lepidocycli7ia in common, which 

 supports the idea of their belonging to the same zone. 



(5) L. munieri has already occurred at Vicentin in Europe, in 

 the Upper series of beds of Aquitanian age. 



(6) L. verheeki is perhaps one of the most widely distributed of 

 the Miocene forms of the Orbitoidi7iai, since Newton & Holland 



* Proc. Linn. Soc. N. S. Wales, 1905, Vol.'xxx., p. 273. 



