Recent Foraviinifera off the East Coast of Australia. 141 



Cristellaria variabilis Reuss. (PL V, fig. 8.) 



Cristellaria variabilis Reuss, 1850, Denkschr. d. k. Akad. Wiss. Wien., 



vol. i, p. 369, pi. xlvi, figs. 15, 16. 

 C. variabilis Brady, 1884, Chall. Rept., p. 541, pi. Ixviii, figs. 11-16. 

 C. variabilis Heron-Allen and Earland, 1916, Foram. West of Scotland, 



Trans. Linn. Soc. London, vol. xi, pt. 13, p. 263. 



Beautiful specimens occur, both in the young and adult stage. 

 The carinate variety is similar to the " Challenger " examples. 

 The non-carinate is elongate and much narrower than the other 

 variety, also the initial portion is -smaller. This may possibly be 

 the microspheric form. Twelve of the carinate and nine of the 

 non-carinate variety were found. 



Cristellaria artictdata Reuss. 



Robulina ariiadata Reuss, 1863, Sitzungsb. d. k. Akad. Wiss. Wien., 



vol. xlviii, p. 53, ]A. v, fig. 62. 

 Cristellaria articidata Reuss, 1870, Sitzungsb. d. k. Akad. Wiss. Wien., 



vol. xlviii, p. 483 ; Schlicht, Foram. Pietzpuhl., 1870, pi. xvii, figs. 5-12. 

 C. articidata Brady, 1884, Chall. Rept., p. 547, pi. Ixix, figs. 1-4, 10-12. 



One only found, and it is of the wild, growing variety, having 

 two angular chambers in the linear series. The specimen is small 

 and carries a small keel as far as the commencement of the 

 upright chambers. » 



Cristellaria acutauricularis (Fichtel and Moll). 



" Hamnionioi subrotundce," etc., Soldani, 1879, Testaceographia, vol. i, 



pt. i, p. 61, pi. xlix, fig. X. 

 Nautilus acutauricularis Fichtel and Moll, 1803, Test. Micr., p. 102, 



pi. xviii, figs. g-i. 

 Cristellaria acutauricularis Flint, 1899, Rept. U.S. Nat. Mus., for 1897, 



p. 316, pi. Ixiii. fig. 5. 



Three occur. The smallest is near to the " Challenger " figure, 

 the other two are broader and more heavily built. 



Cristellaria dentata Karrer(?). (PI. V, fig. 9.) 



Cristellaria dentata Karrer, 1867, Sitzungsb. d. k. Ak. Wiss. Wien. , 



vol. Iv, p. 348, pi. i, fig. 1. 

 C. dentata Brady, 1884, Chall. Rept., p. 540, pi. cxiii, fig. 12. 



Although my drawing bears a strong likeness to Chapman's 

 C. tricarinella, 1909, Eept. Foram. Sub-antarctic Islands, New 

 Zealand, p. 343, pi. xvi, fig. 3, it seems to me to be better placed 

 under C. dentata, with a query against it. The test, however, is 

 keelless, and may be an immature specimen. Except in the 

 matter of the keel, it agrees almost perfectly with Brady's 

 " Challenger " figure of C. dentata. The test is not flattened as in 

 G. tricarinella, and when placed alongside of the many fine 

 specimens I possess of the " Challenger " form of C. tricarinella, it 

 can be seen at once that it differs from them in many respects. 



