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



Nos.IOGa and 106b. — -'Fragments of rock in situ (limestones 

 and tuffs), at creek just before Bartaleppe (about 400 ft. above 

 sea-level), Malekula."^ 



No. 106a is a whitish, granular, and somewhat friable lime- 

 stone, rather tuffaceous, with embedded pellets of igneous rocks. 

 In thin sections this limestone is seen to consist largely of fora- 

 miniferal tests, but branching Lithothamnium, echinoid fragments, 

 and lamellibranch shells are also present. 



The Foraminifera are : — 



Globigerina conglobata Brady. 



Truncatulina sp. 



Carpenteria rhaphidodeyidron Moebius sp. 



Rotalia sp. 



Amphistegina lessonii d'Orb.; large tests as in No. 105. 



Operculina sp. 



Linderina cf. hrugesi Schlumberger. 



Lepidocyclina (l) verbeeki Newton & Holland. 



L. C?) sumatrensis Brady. 



No. 106b. — An ash-coloured, fine-grained, friable tuff, contain- 

 ing a large number of Globigerina tests, referable to G. bulloides 

 d'Orb., and G. conglobata Brady. 



No. 108. — " From the Laleppe Amil to Bartaleppe track, about 

 1 mile from the amil, and at an elevation approximating 1000 ft."* 

 A compact yellowish limestone. The matrix of the rock is fine- 

 grained, with a crystalline cement. Distributed throughout are 

 large foraminiferal tests, chiefly of Lepidocyclina, Ope?-culma, and 

 Miogypsina. Associated with these organisms are fragments of 

 the characteristic Lithothamnium ramosissimum and echinoid 

 plates and spines. The Foraminifera in this rock are of especial 

 interest, as the following list will show : — 



Spiroloculina cf. limbata d'Orb. 



Miliolina cf. trigonula Lam. sp. 



* Mawson, op. cit. p. 4 18. 



