232 "TERRA NOVA ' EXPEDITION. 



C._OFF THE COAST OF RIO DE JANEIRO. 



Official Station 42. '-'Off the Coast of Rio de Janeiro," 22° 56' S. 41° 

 34' W.— 40 fms. 



Among the material submitted to us for examination was a small jar of 

 organic debris and muddy sand, bearing the above particulars. The organic 

 remains consisted of fragments of large mud-eating worms ; these were treated 

 with caustic potash, and a considerable amount of material was thus obtained. 

 There was also a small jar of similar sand, broken shells and minute fishes, 

 obviously rubbish from a trawl-net, bearmg no laljel, and without any indications 

 whatever of locality or depth. On washing this material, it became clear that 

 this also came from Station 42. As this was an isolated gathering, from a 

 locality far removed from those forming the subject of the foregoing Report, we 

 have not recorded the species therein found among our N.Z. and Antarctic 

 records, but we have appended the letters " R. d. J."" after the lists of Stations 

 where they were found in those areas. The following nine species call for special 

 mention, not having been recorded elsewhere in this Report. 



635. Biloculina laevis (Defrance). 



Pyrgo laevis, Defrance, 1824, Diet. Sci. Nat., vol. .x.xxii, p. 273 ; Atlas Couch., pi. Ixxxviii, fig. 2. 

 Biloculimi laevis, Millett, 1898, etc., FM. 1898, p 263. 



This so-called species differs from B. depressa only in the distinctiveness with 



which the marginal edge of the penultimate chamber is exposed, riuming parallel 



with the peripheral edge of the ultimate chamber, and thus forming a bicarinate 



test. A single quite typical specimen occurred in this material. 



636. Miliolina auheriana, var. arenacea, nov. PI. I, fig. 1-3. 



Structure exactly as in M. auberianu, luit the shell is composed entirely of 

 small calcareous sand-grains neatly cemented together. Surface smooth, and didl. 

 Colour grey. Aperture as in the type, but small and furnished with a tooth. 



Broken .specimens do not reveal any porcellanous lining to the test. The 

 material used as cement appears to be entirely calcareous, effervescing strongly 

 under acid. The variety was quite common in the gathering. 



Size: — '50- -70 mm. long; '50- '60 mm. broad; •25 mm. thick. 



637. Textularia harreitii, Jones and Parker. 



Textularia barrettii, Jones and Parker, 1863, FJ. pp. 80 and 105. 



Heron-Allen and Earland, 19U, etc., FKA. 191-5, p. 630. 

 Two very fine specimens. 



638. CuneoUna pavonia, d'Orbigny. 



CuneoUna pacuiiia, d'Orbigny. 1846, FFV. p. 253, pi. xxi, figs. .50, 52. 



Carpenter, Parker and Jones, 1862, ISF. p. 193, pi. xii, fig. 17. 

 Textularia truchus, Goes, 1882, RRCS. p. 80, pi. v, figs. 167-170. 



barrettii, Flint, 1899, RFA. p. 285, pi. xxx, fig. 2. 

 CuneoUna pavonia, Cushman, 1919, FFWI. p. 34, pi. vii, fig. 1. 



