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Volume 38, 1905
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Introductory Remarks.

The following series of Foraminifera and Ostracoda was obtained from material collected during the dredging operations carried out by Messrs Hedley and Suter, under the auspices of the Australasian Association for the Advancement of Science, at the Dunedin meeting in 1904.

The sounding from which the microzoa were selected was taken in lat. 36° 8′ S., long. 175° 55′ E., off Great Barrier Island, North Island New Zealand, at a depth of 110 fathoms. This locality is not far from the “Challenger” station 169, where at a depth of 100 fathoms the water had a temperature of 55·2°.* At this station, at a depth of 700 fathoms, sixty-six species of Foraminifera, but no Ostracoda, were recorded. Of the Foraminifera, twenty-eight species are common to both localities, after making allowance for changes in some of the specific names of the earlier record. The Ostracoda are dealt with in detail in the sequel to this paper.

The sounding off Great Barrier Island is remarkable for the extraordinary abundance of specimens of Biloculina, Nodosaria, Cristellaria, and Truncatulina, and their full development is indicative of especially favourable conditions of life in that particular area.

Another interesting feature of the present assemblage of Foraminifera is the presence of a large number of forms which have hitherto been found in the Northern Hemisphere; and particularly from the colder waters of the Temperate Zone.

The following is a list of the Foraminifera embodied in this report; the species new to the New Zealand area, according to the list given in Captain Hutton's “Index Faunæ Novæ-Zealandiæ,” being marked with an asterisk. Of the 103 species of Foraminifera enumerated, fifty-seven are new to this area, whilst one is new to science, and constitutes the type of a new genus

  • Biloculina pisum Schlumberger.

  • B. anomala, Schlum.

[Footnote] * Chall. Reports, Summary of Results, ptai, 1895, p. 605.

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  • M. circularis, Born. sp.

  • M. seminulum, Linné sp.

  • M. bicornis, W. and J. sp.

  • M. vulgaris, d'Orb. sp.

  • M. agglutinans, d'Orb. sp.

  • Planispirina sphæra, d'Orb. sp. (Biloculina in “Index”)

  • Pelosina cylindrica, Brady.

  • P. variabilis, Brady.

  • P. rotundata, Brady.

  • Brachysiphon corbuliformis, gen. et sp. nov.

  • Reophax scorpurus, Montfort sp.

  • Haplophragmium canariense, d'Orb. sp.

  • H. globigeriniforme, P. and J. sp.

  • H. calcareum, Brady.

  • Ammodiscus tenuis, Reuss.

  • Textularia conica, d'Orb.

  • T. inconspicua, Brady.

  • T. trochus, d'Orb.

  • T. turris, d'Orb.

  • T. gramen, d'Orb.

  • T. gibbosa, var tuberosa, d'Orb. (T. aspera in “Index”).

  • Spiroplecta sagittula. Defr. sp. (Textularia in “Index”).

  • S. sagittula, var. fistulosa, Brady.

  • Clavulina communis, d'Orb.

  • C. rudis, Costa sp.

  • C. soldanii, J and P. sp.

  • Bulimina pyrula, d'Orb.

  • B. pyrula, var. spinescens, Brady.

  • B. marginata, d'Orb.

  • B. inflata, Segueuza.

  • Virgulina subsquamosa, Egger.

  • Bolivina robusta, Brady.

  • B. karreriana, Brady.

  • Cassidulina lævigata, d'Orb.

  • C. subglobosa, Brady.

  • C. bradyi, J. Wright.

  • Lagena elongata, Ehrenb. sp.

  • L. gracillima, Seg. sp.

  • L. striata, d'Orb. sp.

  • L. sulcata, W. and J. sp.

  • L. hispida, Reuss.

  • L. hexagona, Williamson sp.

  • L. lacunata, Burrows and Holland.

  • Nodosania hispida, d'Orb.

  • N. pyrula, d'Orb.

  • N. (D.) consobrina, d'Orb. sp.

  • N. (D.) consobrina, var. emaciata, Reuss.

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  • N. (D.) filiformis, d'Orb.

  • N. (D.) farcimen, Reuss sp.

  • N. (D.) soluta, Reuss sp.

  • N. (D.) pauperata, d'Orb. sp.

  • N. (D.) roemeri, Neug. sp.

  • N. (D.) obliqua, Linné sp.

  • obliqua, var. vertebralis, Batsch var.

  • Frondicularia reussi, Karrer.

  • Marginulina glabra, d'Orb.

  • Cristellaria tenuis, Born. sp.

  • C. reniformis, d'Orb.

  • C. schloenbachi, Reuss.

  • C. tricarinella, Reuss.

  • C. italica, Defr sp.

  • C. latifrons, Brady.

  • C. articulata, Reuss sp.

  • C. rotulata, Lam. sp.

  • C. orbicularis, d'Orb. sp.

  • C. cultrata, Montf. sp.

  • C. mamilligera, Karrer.

  • C. costata, F. and M. sp.

  • Uvigerina asperula, Cz.

  • U. pygmæa, d'Orb.

  • Ramulina globulifera, Brady (not noted in “Index,” but recorded by Brady west of New Zealand).

  • R. lævis, Jones.

  • Globigerina bulloides, d'Orb.

  • G. triloba, Reuss.

  • G. inflata, d'Orb.

  • G. æquilateralis, Brady.

  • Orbulina universa, d'Orb.

  • Sphæroidina bulloides, d'Orb.

  • Pullenia sphæroides, d'Orb. sp.

  • P. quinqueloba, Reuss sp.

  • Truncatulina tenuimargo, Brady.

  • T. reticulata, Cz. sp.

  • T. wuellerstorfi, Schwager sp.

  • T. lobatula, W. and J. sp.

  • T. variabilis, d'Orb.

  • T. ungeriana, d'Orb. sp.

  • T. akneriana, d'Orb. sp.

  • T. pygmæa, Hantken.

  • T. haidingeri, d'Orb. sp.

  • T. (?) præcincta, Karrer sp.

  • Anomalina polymorpha, Costa.

  • Pulvinulina truncatulinoides, d'Orb. sp. (in “Index” as micheliniana).

  • P. crassa, d'Orb. sp.

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  • P. canariensis, d'Orb. sp.

  • P. auricula, F. and M. sp.

  • P. schreibersii, d'Orb. sp.

  • Rotalia sòldanii, d'Orb.

  • R. papillosa, var. compressiuscula, Brady.

  • R. clathrata, Brady.

  • Nonionina umbilicatula, Montagu sp.

  • Miliolina insignis, H. B. Brady.

References given below are restricted to the original records and one or two of the more important of later date.