58 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



ANGULOGERINA OCCIDENTALIS (Cushman) 



Plate 15, Figure 12 



Uvigerina angulosa Cushman (not Williamson), Carnegie Inst. Washington 

 Publ. 311, p. 34, pi. 5, figs. 3, 4, 1922. 



Uvigerina occidentalis Cushman, U. S. Nat. Mus. Bull. 104, pt. 4, p. 169, 1923. 



Angulogerina occidentalis Cushman, Florida State Geol. Surv. Bull. 4, p. 50, pi. 9, 

 figs. 8, 9, 1930. — Cushman and Parker, Proc. U. S. Nat. Mus., vol. 80, art. 

 3, p. 17, 1931.— Cole, Florida State Geol. Surv. Bull. 6, p. 44, pi. 2, fig. 5, 

 1931. — Cushman and Laiming, Journ. Pal., vol. 5, p. 112, pi. 12, figs. 15, 16, 

 1931. — Cushman, Contr. Cushman Lab. Foram. Res., vol. 8, p. 46, pi. 6, 

 figs. 15, 16, 1932. — Cushman and Ponton, Florida State Geol. Surv. Bull. 9, 

 p. 14, pi. 1, fig. 30, 1932. — Cushman and Cahill, U. S. Geol. Surv. Prof. 

 Paper 175A, p. 28, pi. 9, figs. 8a, b, 1933. — Campbell, Journ. Ent. Zool., vol. 

 27, No. 3, p. 46, fig. 10, 1935. — Hadlet, Journ. Elisha Mitchell Sci. Soc, vol, 

 52, No. 1, p. 35, 1936.— Kleinpell, Mioc. Stratigraphy Calif., p. 30G, 1939. 



Test minute, elongate, triangular in transverse section, the periphery 

 somewhat lobulate; chambers distinct, those of the last-formed por- 

 tion becoming more distinct and remote; sutures distinct and depressed ; 

 wall ornamented with longitudinal costae on all but the last-formed 

 chambers in the adult; apertural end drawn out into a short tubular 

 neck and slight phialine lip. Length, 0.30 mm.; diameter, 0.12 mm. 



The figured specimen does not show the uniserial stage very highly 

 developed. This species, originally described from the Atlantic in 

 the West Indian region, is found rarely also in the Pacific about the 

 oceanic islands. We have records for three Albatross stations, given 

 in table 28. The species is also known from the Miocene onward, 

 both in Florida and California. 



Genus TRIFARINA Cushman, 1923 



Trifarina Cushman, U. S. Nat. Mus. Bull. 104, pt. 4, p. 99, 1923. 



Genoholotype. — Trifarina bradyi Cushman. 



Test elongate, triangular in transverse section; early chambers in 

 an irregular spire or triserial, later uniserial; wall calcareous, perforate; 

 aperture terminal in adult, rounded, with short neck and lip. Eocene 

 to Kecent. 



