EXPLANATION OF PLATE 89 (LXXXIX) 



Figs. 1-9, 12, X 100; Fig. 10, X 90; Fig. 11, X 60. 

 Figure 1. — Pileolina (?) patelliformis (Brady). 



Challenger Sta. 187, South of Papau, Pacific. (6 fathoms) 

 Referred by Brady to Discorbina and by Cushman and others to Discorbis. Brotzen (Sver. Geol. Unders. 

 Avh., Vol. 30, No. 3, Ser. C, 1936, p. 141) placed it in Conorbina and Bermudez CBol. de Geol., Caracas, Vene- 

 zuela, Vol. 2, No. 4, 1952, p. 37) in Conorbella Hofker. For a discussion of Pileolina see Hornibrook and Vella 

 (The Micropal., N.Y., Vol. 8, No. 1, 1954, pp. 24-25). 

 Figvu-es 2-4. — Pileolina (?) australensis (Heron-Allen and Earland). 

 Figs. 2, 4. Shore-sand, Port Elizabeth, Algoa Bay, S. Africa. 

 Fig. 3. Challenger Sta. 163B, Port Jackson, Australia. (2-10 fathoms) 

 Referred by Brady to Discorbina pileolus (d'Orbigny) and by Heron-Allen and Earland (Discovery Repts., 

 Vol. 4, Foraminifera Pt. 1, 1932, p. 416) to Discorbis australensis. If Pileolina be accepted in a modified form 

 then this species should probably be placed there (see Hornibrook and Vella, 1. c. supra). 

 Figures 5-7. — Pileolina (?) tabernacularis (Brady). 



Figs. 5, 6. Challenger Sta. 187, S. of Papua, Pacific. (6 fathoms) 

 Fig. 7. Challenger Sta. 219A, Admiralty Islands, Pacific. (17 fathoms) 

 Referred by Brady to Discorbina and by Cushman and others to Discorbis. Hofker (Siboga Exped., Fora- 

 minifera Pt. Ill, 1951, p. 470) places this species in Conorbella, which is a synonym of Glabratella Dorreen. 

 It may perhaps belong in Pileolina (see Hornibrook and Vella, 1. c. supra). 

 Figures 8, 9. — Pileolina (?) opercularis (d'Orbigny)? 



Fig. 8a. Challenger Sta. 185, Torres Strait, Pacific. (155 fathoms) 

 Figs. 8b-d, 9. Curtis Strait, Queensland, Australia. 

 Referred by Brady to Discorbina and by Cushman and others to Discorbis. Bermudez (1. c. supra, 1952, 

 p. 37) refers it to Conorbella (synonym of Glabratella, see earlier) as "Discorbina opercularis Brady (no de 

 d'Orbigny)". It seems possible that it is a Pileolina, and according to Bermudez is not the species described 

 from Cuba by d'Orbigny. It is probably new if distinct from d'Orbigny's species. 

 Figure 10. — Discopulvinulina subbertheloti (Cushman). 



Challenger Sta. 209, Philippines. (95-100 fathoms). 

 Referred by Brady to Discorbina bertheloti (d'Orbigny) and by Cushman (Carnegie Inst., Washington, 

 Publ. 342, 1924, p. 33) to Discorbis subbertheloti. The species is very close indeed to D. bertheloti, which is the 

 type of Discopulvinulina Hofker, and is therefore referred to the same genus. 

 Figures 11, 12. — Discopulvinulina bertheloti (d'Orbigny). 



Fig. 11. Challenger Sta. 209, Philippines. (95-100 fathoms) 

 Fig. 12. Porcupine Sta. 6, West of Ireland, Atlantic. (90 fathoms) 

 Referred by Brady to Discorbina and by Cushman and others to Discorbis. Hofker (Siboga Exped., Fora- 

 minifera Pt. Ill, 1951, p. 449) made this species the genotype of Discopulvinulina. Hofker and Bermudez 

 both included under this heading a variety of "Discorbis" species, such as D. globularis (which is a Rosalina), 

 D. advena, D. turbo (a Discorbina according to Hornibrook and Vella), D. bradyi (a Rosalina), etc., but Horni- 

 brook and Vella (1. c. supra) restrict the genus to forms of the D. bertheloti type. 



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