34 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 



Page 

 Figs. 15, 16. MiliamtJiina earlandi Loeblich and Tappan, new name 12 



i5a,b, Opposite sides of lectotype (B.M.N.H. No. ZF 3406). isc, Top 

 view, from R.R.S. William Scoresby station 43, off South Georgia. 

 16, Transverse section of hypotype (B.M.N.H. No. ZF 3407), from 

 R.R.S. William Scoresby station 50, off South Georgia, showing definite 

 quinqueloculine plan. These specimens were originally placed by Heron- 

 Allen and Earland in Miliammina arenacea (Chapman) and then in 

 Miliatnmina oblonga Heron-Allen and Earland, (not Montagu). All 

 figures X 79- 



Figs. 1-3, 14-16 are camera lucida drawings by Helen Tappan Loeb- 

 lich; figs. 4-12 are camera lucida drawings by Lawrence Isham; fig. 13 

 is a photograph prepared for the writers by the Bureau des Recherches 

 Geologiques et Geophysiques, Paris. 



Plate 2. Trilociilarena, Hauerina, and Involvohauerina 



Fig. I. Trilociilarena circidaris (Heron-Allen and Earland) 13 



ia,b. Opposite sides, ic. Top view of lectotype (B.M.N.H. No. ZF 

 3563), from Discovery station D 182, Schollaert Channel, Palmer Archi- 

 pelago, Antarctica. X 27. 



Fig. 2. Hauerina compressa d'Orbigny 14 



2a, Side view of holotype (M.N.H.N.), from the Miocene of the 

 Vienna Basin, showing somewhat evolute test. 2b, Edge view, showing 

 lenticular form, acute periphery, and multiple aperture in a trema- 

 tophore. X 58. 



Figs. 3-8. Involvohauerina globularis Loeblich and Tappan, new genus, 



new species 14 



3a, Side view of holotype (U.S.N. M. No. P 2202) , showing subglobular 

 involutely coiled three-chambered form. 3b, Edge view, showing broadly 

 rounded periphery, and multiple aperture of irregular openings which 

 are not restricted to a definite trematophore. 4, Dissected paratype 

 (U.S.N.M. No. P 2203a), showing quinqueloculine early chamber 

 arrangement, followed by planispiral arrangement with three chambers 

 to a coil, s, Edge view of paratype (U.S.N.M. No. P 2203b), showing 

 slightly asymmetric coiling of young specimens. 6, Edge view of para- 

 type (U.S.N.M. No. P 2203c), a more typical symmetrical form. 7, 

 Edge view of asymmetrical young specimen (U.S.N.M. No. P 2203d). 

 Figs. 3-7 from Albatross station D 2035. 8a,b, Opposite sides of large 

 paratype (U.S.N.M. No. P 2204), the only specimen found in which 

 four chambers are visible externally. 8c, Edge view showing sym- 

 metrically placed aperture, and later planispiral coiling. From Albatross 

 station D 2859. All figures X 20. 



All figures are camera lucida drawings; figs, i, 2 by Helen Tappan 

 Loeblich; figs. 3-8 by Lawrence Isham. 



Plate 3. Polysegmentina, Rotaliammina, Tritaxis, Trochamminella, 

 Rimulina, Bdelloidina, and Tubinella 



Figs. 1-3. Polysegmentina circinata (Brady) 16 



la. Side view of lectotype (B.M.N.H. No. ZF 3629), showing only 



