and in Port Jackson : and its range extends into the coral seas 

 of the Pacific. 



Abundant in the limestone of the Philter Quarries, also from 

 the Upper Quariy. 



Bairdia foveolata, G. S. Brady. 



B. fiU'eoldta, G. S. Brady, 1867, les Fonds de la Mer, vol. L, p. 

 56, pi. VII., Figs. 4-6. Idem, 1880, Rep. Chall. Zool. pt. 

 III., p. 55, pi. YIIL, Figs la-f ; Figs, 2a-/'. Chapman, 

 1902, Journ. Linn. Soc. Lond. Zool., vol. XXYIII. p. 423. 

 B. cf. fove.olata, G.S.B., Id., 1905, Journ. Linn. Soc. N.S. 

 Wales, vol. XXX., p. 272, pi. XIL Fig. 1. 



This species is found living in the Atlantic and Pacific 

 Oceans, and its range extends as far south as Bass Strait. There 

 is not much doubt that it was this species which occurred in 

 the Miocene limestones of Santo, New Hebrides. 



The carapace of B. fovtolata, as seen from above, is tumid 

 in the centre, and the surface is generally distinctly pitted. 



.\ few carapaces and detached valves were found in the lime- 

 stone of the Filter Quarries. 



Fam. Cytheridae. 

 Cythere wyviUe-thomsoni, G. S. Brady. 



('. u'yviUe-thom.soni, G. S. Brady, 1880, Rep. Chall. Zool., pt. 

 III., p. 82, pi. XX., Figs. la-f. 



This species is now living in the Southern Ocean and in 

 Torres Strait. A carapace and two separate valves from the 

 Filter Quarries ; and one carapace from the Lepidocyclina-\ime- 

 stone of the Upper Quarry. 



Loxoconcha alata, G. S. Brady. 



L. alata, G. S. Brady, 1868, Ann. Mag. Xat. Hist., ser. 4, vol. 

 II., p. 223, pi. XIV., Figs. 8-13. 



This species is found living at Honolulu and Mauritius, and 

 is therefore confined to coral seas at the present day. 



Two carapaces and a single valve from the Filter Quarries. 



