| OCR Text |
Show 14 ME. F. CHAPMAN ON SOME [Jail. 15, EHABDAMMINA, M. Sars. 49. EHABDAMMINA DISCEETA, Brady. Rhabdammina discreta, Brady, 1884, Chall. Eep. vol. ix. p. 268, pi. xxii. figs. 7-10. Found in Sample No. 1, very rare; No. 4, frequent; No. 6, very rare. EnizAMMiNA, H. B. Brady. 50. EHIZAMMINA INDIVISA, Brady. Rhizammina indivisa, Brady, 1884, Chall. Eep. vol. ix. p. 277, pi. xxix. figs. 5-7. Found in Sample No. 1, very rare; No. 4, common; No. 5, very rare. EEOPHAX, Montfort. 51. EEOPHAX DIFFLCGIFOEMIS, Brady. Reophax cliffiugiformis, Brady, 1884, Chall. Eep. vol. ix. p. 289, pi. xxx. figs. 1-5. The tests of these specimens from the Arabian Sea are composed of tiny embryonic globigerine shells in all cases excepting that from Sample No. 1, in which the specimen is composed of sandy and spicuiar material. Found in Sample No. 1, very rare; No. 4, very rare; No. 5, very rare ; No. 6, very rare. 52. EEOPHAX SCOEPIUEUS (Montfort). Reophax scorpiurus, Brady, 1884, Chall. Eep. vol. ix. p. 291, pi. xxx. figs. 12-17. It is possible that one of the specimens referred to the above species, that from Sample No. 1, more properly belongs to R. arctica, Brady, since it has the usual tapering shell but strongly compressed. It differs, however, from the typical R. arctica in bein<* quite as large as the well-known R. scotpiurus. The other specimens met with are of the ordinary type form. Found in Sample No. 1, very rare ; No. 4, frequent; No. 6, frequent. 53. EEOPHAX SPICULIFERA, Brady. Reophax spiculifera, Brady, 1884, Chall. Eep. vol. ix. p. 295, pi. xxxi. figs. 16, 17. The usual form of this species has more or less cylindrical chambers ; but some of the specimens from the Arabian Sea show a tendency to pass over into the form of R. noclulosa, Brady, whilst retaining the spicuiar test. It is therefore difficult to determine to which of the two above-mentioned species some of the specimens belong ; the cylindrical form of the segments is here taken as the distinguishing character irrespective of the nature of the test. |
