28 MR. FREDERICK CHAPMAN ON THE 



thoroughly typical specimen, and this peculiarity was noticed by Howchin, who 

 found it at Muddy (Jreek (Lower Bed). S. carinata and its minor varieties 

 were found by Stache in the late Tertiary marls of Whaingaroa Harbour, 

 Auckland, New Zealand. 



Occurrence. — Grrice's Creek, common ; Balcombe's Bay, rare. 



Spiroplecta nussdorfensis, d'OrUgny sp. (Plate 3. fig. 62.) 



Textularia nussdorfensis, d'Orbigny, 1846, Foram. Foss. Vienne, p. 243, pi. 14. figs. 17-19. 



Our figured specimen agrees very closely with d^Orbigny's original 

 example, with the exception that it has the spiral commencement of a 

 Spiroplecta. This feature is not seen in the figure alluded to above, but its 

 general irregularity of build makes it highly probable that d'Orbigny's 

 example was a true Spiroplecta. 



Occurrence. — Grice's Creek, very rare. 



Genus Gaudryina, d'Orbigny. 



Gaudryina pupoides, d'Orligny. (Plate 3. fig. 63.) 



Gaudryina pupoides, d'Orbigny, 1840, Mgm. Soe. Geol. France, ser. I. vol. iv. p. 44, 

 pi. 4. figs. 22-24. 



This rather variable form appears to be extremely rare in the Victorian 

 foraminiferal deposits, so far as I have examined them. The figured specimen 

 is unusually protuberant at the aboral extremity. 



Occurrence. — Grice's Creek, very rare. 



Gaudryina rugosa, d'Orbigny. (Plate 3. fig. 64.) 



Qcnidryina rugosa, d Orbigny, 1840, Mem. Soc. Geol. France, s^r. I. vol. iv. p. 44, pi. 4. 

 figs. 20, 21 ; Howchin, 1889, Trans. K. Soc. S. Australia, vol. xii. p. 8. 



The specimens which are identifiable with the above are exemplified in our 

 series in every stage of their development. The initial portion of the test, 

 with its tricarinate form, is fairly common, and at this stage is closely 

 comparable with Verneuilina triqiietra, Miinster sp. A point of distinction in 

 the young of G. rugosa, however, is the brevity of the initial, tricarinate 

 portion ; in other words, a typical specimen of Verneuilina triquetra has a 

 normally longer test than that of G. rugosa in its earlier stage. 



Howchin recorded this species from Muddy Creek (Lower Bed) ; and Vine 

 from the Tertiaries of Port Phillip. 



Occurrence. — Grice's Creek, common ; Balcombe's Bay, common ; Kackera- 

 boite Creek, common ; Altona Bay Coal-Shaft, common. 



Gaudryina siphonella, Reuss. (Plate 3. fig. 65.) 



Gaudryina siphonella, Reuss, 1851, Zeitschr. deutsch. geol. Gesellsch. vol. iii, p. 78, pi. 5. 

 figs. 40-42; Hantken, 1875 (1881), Mitth. d. Jalirb. k.-ungar. geol. Anstalt, vol. iv. p. 14, 

 pi. 1. fig. 3. 



This neat little Gaudryina is a well distributed Tertiary and recent species. 



