EXPLANATION OF PLATE 49 (XLIX) 



Figs. 1-5, X 16; Fig. 6, X 30; Fig. 7, X 120; Figs. 8, 9, X 35; Figs. 10, 11, X 25; Fig. 12, X 80; 

 Figs. 13, 15, X 50; Figs. 14, 16, X 40. 

 Figures 1, 2, 4-7. — Tritaxilina caperata (Brady). 



Figs. 1, 2, 5, 6. Challenger Sta. 174C, Fiji, Pacific. (210 fathoms) 

 Fig. 7. Challenger Sta. 174, Fiji, Pacific. 

 Referred to Tritaxia by Brady and to Tritaxilina by Cushman (U.S.N.M. Bull. 71, Pt. 2, 1911, p. 71). 

 Figure 3. — Tritaxilina atlantica Cushman. 



Challenger Sta. 23, West Indies. (450 fathoms) 

 Referred by Brady to Tritaxia caperata and by Cushman to Tritaxilina atlantica (as T. caperata var.) (U.S. 

 N.M. Bull. 104, Pt. 3, 1922, p. 79). Raised to specific rank by Cushman in 1937 (C.L.F.R., Spec. Publ. No. 8, 

 p. 158). 

 Figures 8-9. — Clavulinoides afif. instar Finlay (sp. nov. ?). 



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

 Referred by Brady to Tritaxia tricarinata (Reuss), a European Cretaceous species. Thalmann (Eclog. geol. 

 Helvet., Vol. 26, No. 2, 1933, p. 252) gives Clavulina tricarinata (Reuss) but the figure shows no indication 

 of a valvular tooth in the aperture and there Clavulinoides is indicated. The closest described species appears 

 to be C. instar Finlay (Trans. Proc. Roy. Soc. New Zealand, Vol. 69, 1939, p. 94). 

 Figures 10, 11. — Clavulinoides indiscretus (Brady). 



Fig. 10. Challenger Sta. 174C, Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Tritaxia and transferred to Clavulinoides by Cushman (C.L.F.R., Spec. Publ. No. 7, 

 1937, p. 135). 

 Figure 12. — Angulogerina (?) lepida (Brady). 



Challenger Sta. 45, North Atlantic. (1240 fathoms) 

 Referred by Brady to Tritaxia and placed in Angulogerina"^ (or Triplasia?) by Thalmann (Amer. Midland 

 Nat., Vol. 28, 1942, p. 464). 

 Figures 13, 14. — Tritaxis fusca (Williamson). 



Fig. 13. Challenger Sta. VIII, off the Canaries, Atlantic. (620 fathoms) 

 Fig. 14. Challenger Sta. 166, off New Zealand, S. Pacific. (275 fathoms) 

 Referred by Brady to Valvulina. Cushman (Foram. Class. Econ. Use, 1st. ed., 1928, p. 171) designated Ro- 

 talina fusca Williamson the genotype of Tritaxis Schubert 1920, and placed that genus in the synonymy of 

 Trochammina Parker and Jones 1860. Loeblich and Tappan (Smith. iVIisc. Coll., Vol. 128, No. 5, 1955, p. 19) 

 have reinstated Tritaxis Schubert, with fusca as genotype, and they have pointed out that since Trocham- 

 minella siphonifera Cushman 1943 is congeneric with Tritaxis fusca, Trochamminella is a junior synonym of 

 Tritaxis and must be suppressed. 

 Figures 15, 16. — Tritaxis conica (Parker and Jones). 



Fig. 15. Challenger Sta. 174C, off Fiji, Pacific. (210 fathoms) 

 Referred by Brady to Valvulina but as the apertural characters appear to be those of Tritaxis, with no evi- 

 dence of a valvular tooth, it is transferred here to that genus. 



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