48 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



is characterized by its triangular cross section and its closely spaced 

 horizontal spines along the lateral peripheries. 



EHRENBERGINA RETICULATA Cushman 



Plate 21, Figures 4, 5 



Ehrenbergina reticulata Cushman, 1933, Contr. Cushman Lab. Foram. Res., 

 vol. 9, p. 94, pi. 10, fig. 9. — Cushman, Todd, and Post, 1954, U.S. Geol. 

 Surv. Prof. Paper 260-H, p. 367, pi. 90, fig. 37. 



This beautifully ornamented deep-water species has thus far been 

 found only near the Marshall Islands. It was described off Jaluit 

 Atoll (Albatross station H3974) and also was found off Bikini Atoll. 



EHRENBERGINA TRIGONA Goes 



Plate 20, Figure 2 



Ehrenbergina trigona Goes. — Phleger, Parker, and Peirson, 1953, Rep. 

 Swedish Deep-Sea Exped., vol. 7, Sediment Cores, no. 1, p. 46, pi. 10, figs. 

 12, 13. 



A single specimen of this species was found at Albatross station 

 H3873. It appears to have a worldwide distribution but is found 

 only rarely. The reference above elucidates its rather complicated 

 taxonomic history. 



Family CHILOSTOMELLIDAE 



Genus PULLENIA Parker and Jones, 1862 



PULLENIA BULLOIDES (d'Orbigny) 



Plate 18, Figure 6 



Pullenia bulloides (d'Orbigny).- — Cushman and Todd, 1943, Contr. Cushman 

 Lab. Foram. Res., vol. 19, p. 13, pi. 2, figs. 15-18.— Crouch, 1952, Bull. 

 Amer. Assoc. Petr. Geol., vol. 36, no. 5, p. 841, pi. 7, figs. 2, 3. 



This well-known cosmopolitan species occurs rarely in many of 

 the deep-water samples. It is distinctive in its globular and compact 

 test with flush sutures and a very low apertural face. Four chambers 

 comprise the final whorl. 



PULLENIA QUINQUELOBA (Reuss) 



Plate 18, Figure 7 



Pullenia quinqueloba (Reuss).' — Cushman and Todd, 1943, Contr. Cushman 

 Lab. Foram. Res., vol. 19, p. 10, pi. 2, fig. 5; pi. 3, fig. 8. — Phleger and 

 Parker, 1951, Geol. Soc. Amer. Mem. 46, pt. 2, p. 29, pi. 15, figs. 12, 13 — 

 Crouch, 1952, Bull. Amer. Assoc. Petr. Geol., vol. 36, p. 841, pi. 7, fig. 4. 



This species is found in fewer samples than is Pullenia bulloides. 

 Like P. bulloides, it is probably a cosmopolitan species in Recent 

 oceans as well as a species that is widely distributed in the Tertiary. 

 It is easily distinguished from P. bulloides by its compressed test with 



