REPORT ON FORAMINIFERA AND OSTRACODA 59 



Island, 1900 fathoms ; and off Sydney, 410 fathoms. As a fossil this species has been 

 noted from the post-tertiary clays of Norway and the west of Scotland ; and it is fairly 

 common in the Balcombian clays of Port Philip and Muddy Creek, but rarer in the 

 Kalimnan of the latter locality. The present specimens are more neatly built than 

 usual, and the contours are rounder. 



Occurrence. — Sample No. 7, 225 fathoms, very rare ; No. 9, 360 fathoms, common ; 

 No. 12, 460 fathoms, very common ; No. 13, 462 fathoms, common ; No. 14, 472 

 fathoms, frequent. 



Miliolina oblonga, Montagu, sp., var. arenacea, var. nov. (Plate I, fig. 7) 



Reference to type species. — Vermiculum oblongum, Montagu, 1803, Test. Brit., 

 p. 522, pi. xiv, fig. 9. Miliolina oblonga, Montagu, sp., H. B. Brady, 1884, Rep. 

 Chall., vol. ix, p. 160, pi. v, figs. 4a, b. Goes, 1894, Kongl. Svensla Vet.-Akad. Handl., 

 vol. xxv, p. 110, pi. xx, figs. 850-850/. Chapman, 1907, Journ. Linn. Soc. Lond., Zool., 

 vol. xxx, p. 17, pi. ii, fig. 26. 



The type species, with a porcellanous shell, has been recorded from the sub- 

 Antarctic islands of New Zealand, from 50-85 fathoms. The present variety differs in 

 the finely arenaceous material of the test. It is quite a constant form, for no por- 

 cellanous shells of this species were found in these dredgings. The elongated outline 

 readily serves to distinguish this particular variety from Miliolina agglutinans. 



Occurrence. — Sample No. 10, 372 fathoms, very rare ; No. 13, 462 fathoms, common ; 

 No. 14, 472 fathoms, rare ; No. 15, 655 fathoms, frequent. 



Miliolina tricarinata, d'Orbigny, sp. (for references see previous Reports on 

 Foraminifera of Elevated Deposits.) 



A species occurring in polar seas, both north and south. It is interesting to note 

 the unusually small dimensions of the present specimens, one measuring only -346 mm. 

 in length, as compared with a tropical example recorded by Dr. Brady,* measuring 

 4-45 ; the average size being rather less than midway between these two extremes. 



Occurrence. — Sample No. 3, 121 fathoms, frequent ; No. 8, 353 fathoms, very rare. 



Sub -family — Hauerinin^e 

 Genus — Planispirina, Seguenza, 1880 

 Planispirina sphcera, d'Orbigny, sp. (Plate I, fig. 8) 



Biloculina sphcera, d'Orbigny, 1839, Foram. Amer. Merid., p. 66, pi. viii, figs. 

 13-16. H. B. Brady, 1884, Rep. Clmll., vol. ix, p. 141, pi. ii, figs. 4a, b. Planispirina 

 sphcera, d'Orbigny, sp., Schlumberger, 1891, Mem. Soc. Zool. France, vol. iv, p. 577, 

 woodcuts 45, 46. Chapman, 1909, Sub-Antaractic Islands of New Zealand, vol. i, 

 art. xv, p. 324. 



This species occurs sparingly in southern waters. The aperture in our specimens 

 is normal and clearly defined ; the labyrinthic opening being confined to deep-water 

 examples. 



Occurrence. — Sample No. 3, 121 fathoms, one specimen, very small ; No. 4, 153 

 fathoms, one specimen, typical (figured). 



* Rep. Chall., vol. ix, lSS-l, p. 166. 



