314 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Dentalina cf . communis d'Orbigny 

 Plate 41, Figs. 1-4 



Very variable specimens similar to those figured occur at a number 

 of stations. Some of these resemble d'Orbigny 's species but others almost 

 suggest Vaginulina. 



Stations: 1000, 1063, 209, 222, 2005, 2029, 2062, 2098, 2155, 500, 

 535, 573, and 583. 



Distribution. — Two stations off the Channel Islands show 38-41 fms. 

 The stations off Mexico and in the Gulf of California show a depth range 

 of 4 to 95 fms. with 40 fms. being the average depth. Off Ecuador and 

 Peru the Stations 500-583 show a depth range of 10 to 22 fms. with 14 

 fms. being the average depth. Some of the best specimens came from Peru. 



Dentalina filiformis (d'Orbigny) 

 Plate 40, Fig. 17 



"Orthoceratia filiformia aut capillaria" Soldani, Testaceographia, vol. 

 2, 1798, p. 35, pi. 10, fig. e. 



Nodosaria filiformis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 253. 

 — Egger, Abhandl. "kon. bay. Akad. Wiss. Miinchen, CI. II, vol. 18, 

 1893, p. 340, pi. 11, fig. 4.— H. B. Brady, Rep. Voy. Challenger, Zoolo- 

 gy, vol. 9, 1884, p. 500, pi. 63, figs. 3-5. — Chapman, Proc. Zool. Soc. 

 London, 1895, p. 30.— Flint, Ann. Rep. U. S. Nat. Mus. 1897 (1899), 

 p. 310, pi. 55, fig. 6.— Morton, Proc. Portland Soc, vol. 2, 1897, p. 119. 

 — Millett, Journ. Roy. Micr. Soc, 1902, p. 523.— Chapman, The Fora- 

 minifera, 1902, p. 402; Trans. New Zealand Inst., vol. 38, 1905, p. 93, 

 pi. 3, fig. 6.— Goddard, Records Australian Mus., vol. 6, 1907, p. 308. 

 — Heron- Allen and Earland, Journ. Roy. Micr. Soc, 1909, p. 427. 

 — Chapman, Journ. Linn. Soc, Zool., vol. 30, 1910, p. 412. — Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 3, 1913, p. 55, pi. 27, figs. 1-4.— Heron- 

 Allen and Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 92. 

 — Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, 1914, p. 1022. — Heron- 

 Allen and Earland, Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, 

 p.256.— Mestayer, Trans. New Zealand Inst., vol. 48, 1916, p. 129. 

 — Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 133. — Cushman, Proc. 

 U. S. Nat. Mus., vol. 56, 1919, p. 612; Bull. 100, U. S. Nat. Mus., 

 vol. 4, 1921, p. 194, pi. 34, fig. 9; Bull. 104, pt. 4, 1923, p. 76, pi. 12, 

 figs. 1,2. 



