36 



BULLETIN 11, UNITED STATES NATIONAL MUSEUM. 



toward the center, ventral surface convex but less so toward the 



center; chambers numerous, about 11-13 in the final coil, broad, 



short; sutures strongly limb ate, 

 ventrally depressed, sutures be- 

 tween last few chambers and 

 the previous coil deep and dis- 

 tinct; surface very coarsely 

 punctate; aperture an arched 

 slit at the periphery. 



Diameter up to 1.25 mm. 

 Distribution. — The only 

 North Pacific record for this 

 species is given by Bagg, ATba- 



tross station H4590 in 978 fathoms off the Hawaiian Islands. 

 I have had a single specimen from Albatross H2922 also off the 



Hawaiian Islands. 



a o c 



Fig. 38.— Truncatulina akneriana (d'Orbignt). 

 (Adapted from d'Orbigny's type figure.) a, 



VENTRAL VIEW; 6, DORSAL VIEW; C, SIDE VIEW. 



TRUNCATULINA UNGERIANA (d'Orbigny). 

 Plate 17, fig. 2. 



Rotalina ungeriana d'Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 157, 



pi. 8, figs. 16-18. 

 Planorbulina ungeriana H. B. Brady, Trans. Linn. Soc. London, vol. 24, 1864, 



p. 469, pi. 48, fig. 12. — Sherborn and Chapman, Journ. Roy. Micr. Soc, 



1886, p. 757, pi. 16, fig. 16 — 



Goes, Kongl. Svensk. Vet. 



Akad. Handl., vol. 25, No. 9, 



1894, p. 90, pi. 15, fig. 780. 

 Trunca tulina ungeriana Reuss, 



Denkschr. Akad. Wiss. Wien, 



vol. 25, 1865, p. 161.— H. B. 



Brady, Rep. Voy. Challenger, ^— v^^- ^ / ^ 



Zoology, vol. 9, 1884, p. 664, & 



pi. 94 fi". 9a-d. Terrigi Fig - 39.— Truncatulina ungeriana (d'Orbigny). 



tu T? & A 1 "t " (Adapted from d'Orbigny's type figure.) a, dor- 



Mem. K. Accacl. Lmcei, ser. SAL view; 6, ventral view; c, side view. 



4, vol. 6, 1889, p. 117, pi. 8, 



fig. 4; Mem. R. Com. geol. d'ltalia, vol. 4, 1891, p. 106, pi. 4, fig. 9. — Egger, 



Abh. k6n. bay. Akad. Wiss. Munchen, Cl. n, vol. 18, 1893, pi. 16, figs. 



19-21. — Silvestri, Mem. Pont. Accad. Nuovi Lincei, vol. 9, 1893, p. 213, 



pi. 6, fig. 3. — Burrows and Holland, Proc. Geol. Ass., vol. 15, 1897, p. 47, 



pi. 2, fig. 23.— Flint, Rep. IT. S. Nat. Mus., 1897 (1899), p. 333, pi. 77, 



fig. 2. — Millett, Journ. Roy. Micr. Soc, 1904, p. 493. — Chapman, Trans. 



New Zealand Inst., vol. 38, 1905, p. 103; Journ. Quekett Micr. Club, ser. 2, 



vol. 10, 1907, p. 138; Proc. Roy. Soc. Victoria, vol. 22, 1910, p. 285; Journ. 



Linn. Soc, Zoology, vol. 30, 1910, p. 420.— Bagg, Bull. U. S. Geol. Surv., 



No. 513, 1912, p. 83, pi. 25, figs. 1-3. 

 Planorbulina /areata, var. ungeriana Parker and Jones, Philos. Trans., vol. 155, 



1865, p. 382, pi. 16, figs. 23-25. 



Description. — Test free, biconvex but unequally so; peripheral 

 margin acute, subcarinate; chambers numerous, 10 to 12 in the 



