180 "TEREA NOVA" EXPEDITION. 



438. Cristellaria cultrutu (^lontfort). 



Robulus cultratus, Montfort, 1808-10, CS. vol. i, p. 214, M' genre. 

 Cristellaria ctdtrata, Heron- Allen and Earland, 1914, etc., FKA, 1915, p. 672. 



Stations 1-3, 6, 10, 11, 10. 22, 31 ( -f E. d. J.). 



Extremely fine and large, and often with splendid development of the keel at 

 Station 6; good also at Station 11, and one enormous broken specimen at 

 iStation 16. Otherwise not very frequent or typical. 



439. Cristellaria calcar (Linne). 



Nautilus calcar, Linne, 1767, etc., SN. 1788, p. 3,370, no. 2. 

 Cristellaria calcar, Cusliman, 1910, etc., FNP. 1913, p. 72. pi. xxxii, fig. 4. 



Stations 11, 12. 



Small specimens only, with the spines weakly developed. 



440. Cristellaria costata (Fichtel and Moll). PI. VI. fig. 34. 



Nautilus cosiatus, Fichtel and Moll, 1798, TJl. p. 47, pi. iv, figs. g-i. 

 Cristellaria costata, Cushman, 1910, etc., FNP. 1913, p. 75, pi. xxxiv, fig. 4. 



Stations 2, 6. 



Occm-s as recent and finely developed specimens, especially at Station 6. At 

 Station 2, in addition to the type, a thin compressed evolute variety, which 

 we figure, occurs, with sunken sutm-es, and the limbation runnmg parallel with 

 the outer margin of the test. (Length, I'oO mm.) This appears to be inter- 

 mediate between C. paucicostata, Cushman, and C. dorsocostata, Cushman, but does 

 not exactly conform to any of the many variations of C. costata figured by 

 him in his latest monograph on " Foraminifera of the Philippine and Adjacent 

 Seas"' (1921, U.S. National Mu.seum, Bulletin 100). 



SUB-F.4.MILY POLYMOEPHININAE. 

 POLYMORPHINA, dOrbigny. 



441. PolytnorpJmia lactea (Walker and Jacoli). 



Serpula lactea. Walker and Jacob, 1798, AEM. p. 634, pi. xiv, fig. 4. 

 Polymorphina lactea, Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 672. 



Stations 2, 3, 5. 



The best at Stations 2 and 5. Fossils at Stations 2 and 3. 



442. Polymorphina oblonga, Williamson. PI. VII, fig. 2. 



Polymorphina lactea, var. oblonga, Williamson, 1858, RFGB. p. 71, pi. vi, fig. 149. 

 „ oblonya, Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 672. 



Stations 2, 3, 5, 6. 



