EXPLANATION OF PLATE 3 (III) 



Figs. 1, 2, X 40; Fig. 3, X 25; Figs. 4, 5, X 40; Fig. 6, X 35; Figs., 7, 8, X 45; Fig. 9, X 40; 

 Figs. 10-13, X 50; Fig. 14, X 20; Fig. 15, X 40; Fig. 16, X 25; Fig. 17,X50. 

 Figures 1, 2. — Pyrgo depressa (d'Orbigny). 



Porcupine Sta. AA, off Skye, N. Atlantic. (45-60 fathoms) 

 Referred by Brady to Biloculina; see previous plate. 

 Figure 3. — Pyrgo serrata (L. W. Bailey). 



Challenger Sta. 168, off New Zealand, S. Pacific. (1100 fathoms) 

 Referred by Brady to Biloculina depressa d'Orbigny var. serrata. The name serrata had been used previously 

 by L. W. Bailey (Boston Jour. Nat. Hist., Vol. 7, 1862, p. 350) for the same species, according to Cushman 

 (U.S.N. M., Bull. 104, Pt. 6, 1929, p. 73). 

 Figures 4, 5. — Pyrgo denticulata (Brady). 



Fig. 4a. Challenger Sta. 172, Friendly Islands, Pacific. (18 fathoms) 

 Figs. 4b, 5. Challenger Sta. 260A, off Honolulu reefs. Pacific. (40 fathoms) 

 Referred by Brady to Biloculina ringens (Lamarck) var. denticulata and by Cushman (1. c. supra, 1929, 

 p. 69) to Pyrgo denticulata (Brady). 

 Figures 6, 14. — Pyrgo lucernula (Schwager). 



Fig. 6. Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Fig. 14. Challenger Sta. 76, off the Azores, Atlantic. (900 fathoms) 

 Referred by Brady to Biloculina tubulosa Costa (fig. 6) and Miliolina trigonula (Lamarck) (fig. 14). Re- 

 ferred to Pyrgo lucernula by Thalmann 1932. 

 Figures 7, 8. — Pyrgo denticulata (Brady) var. striolata (Brady). 



Fig. 7. Challenger Sta. 187A, Torres Strait, Pacific. (8 fathoms) 

 Fig. 8. Challenger Sta. 187, off Papua, Pacific. (6 fathoms) 

 Referred by Brady to Biloculina ringens (Lamarck) var. striolata and by Thalmann (Eclog. geol. Helv., Vol. 

 25, No. 2, 1932, p. 296) to Pyrgo. 

 Figure 9. — Pyrgo comata (Brady). 



Challenger Sta. 24, West Indies. (390 fathoms) 

 Referred by Brady to Biloculina and by Cushman (U.S.N.M., Bull. 104, Pt. 6, 1929, p. 73) to Pyrgo. 

 Figures 10-13. — Young Miliolidae. 



Fig. 10. Challenger Sta. 205A, ofT Hong Kong, Pacific. (7 fathoms) 

 Figs. 11, 12. Challenger Sta. 217A, off Papua, Pacific. (37 fathoms) 

 Brady regards these as probably young stages of Quinqueloculina pulchella d'Orbigny, a West Indian species, 

 which seems improbable as it has not been recorded from the Pacific as far as has been checked. Brady also 

 refers the figures to "Adelosina soldanii d'Orbigny" (fig. 10), "Adelosina laevigata d'Orbigny" (fig. 11) and 

 " Adelosina semistriata d'Orbigny" (fig. 12). 

 Figures 15, 16. — Triloculina trigonula (Lamarck). 



Fig. 15a. Porcupine Sta. 23, N.W. of Ireland, Atlantic. (630 fathoms) 

 Fig. 15b. Porcupine Sta. AA, ofT Skye, N. Atlantic. (45-60 fathoms) 

 Referred by Brady to Miliolina and by d'Orbigny (Ann. Sci. Nat., Paris, Vol. 7, 1826, p. 299) to Triloculina. 

 Lamarck's species was obtained from the Eocene of France and it is doubtful that the Recent form is the same 

 species. It is probable, as remarked by Cushman and others, that this is distinct, and also that more than one 

 species has been included under the name trigonula by subsequent authors. 

 Figure 17. — Triloculina tricarinata d'Orbigny. 

 Shell Cove, Port Jackson, Australia. 

 Referred by Brady to Miliolina and by d'Orbigny to Triloculina. 



[6] 



