Batesford Liivestuiif. 273 



Typical specimens are not uncommon. They show the spiral 

 commencement very clearly. »S'. sagittula is a common form in 

 the l^alcomlnan, the Janjukian and the Kali in nan series of Vic- 

 toria. In the Janjukian it has been recorded from Waurn 

 Ponds, near (ieelong. In both Cpper and Filter Quarries. 



Spirojylecta sayittida, Defr. sp., var. fi.'<tuIosa, Brady. 



2'ertuhiria sagittida, Defr. var. fistulosa, lirady, 1(S84, Rep. 

 Chall., voL IX., p. 362, pi. XLIL, Figs. 19-22. Spiro- 

 plc.rfa sagittula, Defr. sp. var. fMidosa, Brady, Chap- 

 man, 1907, Journ. Linn. .Soc. Lond. Zool., vol. XXX., p. 

 27, pi. III., Fig. 60. 



Howchin records this form as rare in the Balcombian of 

 Muddy Creek. In the Port Phillip tertiaries it was found to be 

 nearly as common as the specific form. Very rare at Bates- 

 ford, in the Filter Quarries. 



SpiropJerta carinata, dOrbigny, sp. 



Tertularia carinata, d'Orbigny, 1826, Ann. Sci. Nat., vol. VII., 

 p. 263, No. 13. Spiroplecta carinata d'Orbigny, sp., 

 Chapman, 1907, Journ. Linn. 8oc. Lond. Zool., vol. 

 XXX., p. 27, pi. IIL, Fig. 61. 

 This species has previously occurred in the Balcombiiin of 

 Muddy Creek, and the Port Phillip tertiaries. 

 Very rare in the Filter Quarries. 



Gaudrj/'nui rugosa, dOrbigny. 



G. rugosa, d'Orbigny, 1840, Mem. Soc. Geol. France, ser. I., vol. 

 IV., p. 44, pi. IV., Figs. 20, 21. Chapman, 1907, Journ. 

 Linn. Soc. Lond. Zool., vol. XXX., p. 28, pi. III. Fig. 

 64. 



Typical, stoutly built tests rather common. It frequently 

 occurs arrested at the triserial stage, and shows a tendency for 

 the salient edges of the test to become slightly serrated, thus 

 approaching Verneudina sjyinulosa, from which it is separated, 

 however, by the arenaceous structure of the shell. 



