TEKTIARY FOKAMINIFERA OF VICTORIA. 15 



alike in the living condition. Defrance^s original specimens came from the 

 Paris Tertiaries. Vine records this species from the Port Phillip Tertiaries. 



Occurrence. — B. Imvis seems to be rare in Victorian strata. In this series it 

 was found only in washings from the Altona Bay Coal-Shaft. 



BiLOCULiNA ELOISTGATA, (f Orbic/ni/. (Plate 1. fig. 14.) 



Biloculina elongata, d'Orbiguy, 1826, Ann. Sci. Nat. vol, vii. p. 298, No. 4 ; Brady, 1884, 

 Rep. Chall. toI. ix. p. 144, pi. 2. figs. 9 a, 6 ; Howchin, 1899, Trans. R. Soc. S. Australia, 

 vol. xii. p. 1; Schlumberger, 1891, Mem. Soc. Zool. France, vol. iv. p. 571, pis. 11 & 12. 

 figs. 87-89, woodcuts figs. 35, 36, 



Our specimens are small but typical. Howchin recorded the species from 

 Muddy Creek, both Lower and Upper Beds ; and Vine, from the Port Phillip 

 Tertiaries. 



Occurrence. — In the present collection it occurred sparingly at Grice's 

 Creek, Balcombe's Bay, and Kackeraboite Creek. 



Biloculina angusta, sp. nov. (Plate 1. figs. 11-13.) 



Specific characters. — Test narrow, elliptical, with a narrow and somewhat 

 concave peripheral flange. Aperture normally closed by a semicircular flange, 

 but sometimes this is absent. 



Length '36 mm. ; width "17 mm. ; depth "13 mm. 



This form seems intermediate in character between B. labiata, Schlumberger* 

 and B. elongata, d'Orbigny, with stronger affinities towards the former. 



B. labiata has a much broader test and the oral flange is more pronounced. 



Occurrence. — Grice's Creek, frequent ; Kackeraboite Creek, frequent. 



Biloculina irregularis, d'OrUgny. (Plate 1. figs. 5, 6.) 



Biloculina hregularis, d'Orbigny, 1839, Foram. Amer. Merid. p. 67, pi. 8. figs. 22-24 ; 

 Brady, 1884, Eep. Chall. vol. ix. p. 140, pi. 1. figs. 17, 18 ; Howchin, 1889, Trans. R. Soc. 

 S. Australia, vol. xii. p. 1. 



The aperture of this form is sometimes labyrinthic (see figure), as noted 

 also by Howchin in the Muddy Creek specimens. Normally, however, it has 

 a small partition in the aperture. Previously recorded from the Lower Beds 

 of Muddy Creek. 



Occurrence. — B. irregula7ns is common at Grice's Creek, Balcombe's Bay, 

 and Kackeraboite Creek. 



Biloculina globulus, Bomemann. (Plate 1. figs. 17, 18.) 



Biloculina globulus, Bornemann, 1855, Zeitschr, d. deutsch. Geol. Gftsellsch. vol. vii. 

 p. 349, pi. 19. fig. 3 ; Schlumberger, 1891, M^m. Soc. Zool. France, vol. iv. p. 575, pi. 12. 

 figs. 97-100, woodcuts figs. 42-44. 



Schlumberger has shown {loc. cit.) that this species is distinct from the 

 * M^m. Soc. Zool. France, 1891, vol. iv. p. 556, pi. 9. figs. 60-62, woodcuts figs. 13, 14, 



