52 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



PULVINULINA PUNCTULATA (d'Orbigny). 



Plate 24, fig. 1. 



Rotalia punclulata d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 273, No. 25; 



Modeles, No. 12. 

 Pulvinulina re-panda, var. punctulata Parker and Jones, Philos. Trans., vol. 



155, 1865, p. 394, pi. 14, figs. 12, 13. 

 Pulvinulina punctulata Parker, Jones, and H. B. Brady, Ann. Mag. Nat. 

 Hist., ser. 3, vol. 16, 1865, p. 20, pi. 3, fig. 82.— H. B. Brady, Rep. Voy. 

 Challenger, Zoology, vol. 9, 1884, p. 685, pi. 104, fig. 17a-c. — Chapman, 

 Journ. Quekett Micr. Club, ser. 2, vol. 10, 1907, p. 139.— Bagg, Bull. U. S. 

 Nat. Mus., vol. 34, 1908, p. 163. — Chapman, Proc. Roy. Soc. Victoria, vol. 

 22, 1910, p. 287.— Bagg, Bull. U. S. Geol. Surv., No. 513, 1912, p. 86, 

 pi. 25, figs. 6-9. 

 Description. — Test large, plano-convex, dorsal side somewhat con- 

 vex, ventral side flattened or even somewhat concave; peripheral 



margin rounded; 

 chambers usual- 

 ly seven in the 

 last formed 

 whorl; sutures 

 curved, de- 

 pressed, on the 

 ventral side the 

 chambers run- 

 ning to a point 

 c at the umbilicus ; 



Fig. 54.— Pulvinulina punctulata (d'Orbigny). a, dorsal view; 6, ven- ^all smooth ex- 



TRAL VIEW; C, SIDE VIEW. (AFTER PARKER AND JONES.) 



cept at the um- 

 bilicus where it is often rugose or granular ; aperture a narrow, curved 

 slit at the umbilical end of the chamber. 



Diameter up to 3 mm. 



Distribution. — The only North Pacific record for Pulvinulina punc- 

 tulata is that given by Bagg who records it as rare from Albatross 

 D4017 in 305 fathoms, off the Hawaiian Islands. I have failed to 

 find specimens of this species in the material which I have examined 

 from other stations. 



PULVINULINA CONCAMERATA (Montagu). 



Plate 25, fig. 1. 



Serpula concamerata Montagu, Test. Brit., Suppl., 1808, p. 160. 



Rotalina concamerata Williamson, Rec. Foram. Great Britain, 1858, p. 52, pi. 4, 



figs. 102, 103. 

 Pulvinulina repanda Carpenter, Parker and Jones, Introd. Foram., Appendix, 



1862, p. 311. 

 Pulvinulina repanda, var. concamerata H. B. Brady, Rep. Voy. Challenger, 



Zoology, vol. 9, 1884, p. 685, pi. 104, fig. 19a-c. 



Description. — Test biconvex, the sides about equally so; chambers 

 six to eight in the last-formed coil, distinct; sutures on the ventral 



