FOKAMINIFEEA OF NORTH PACIFIC OCEAN. 69 



CRISTELLARIA ACUTAURICULARIS (Fichtel and Moll). 



Plate 35, fig. 2. 



"Hammonise eubrotundse" Soldani, Testaceographia, vol. 1, pt. 1, 1789, p. 61, 



pi. 49, fig. X. 

 Nautilus acutauricularis Fichtel and Moll, Test. Micr., 1803, p. 102, pi. 18, figs. 



Cristellaria acutauricularis Parker and Jones, Ann. Mag. Nat. Hist., ser. 3, vol. 

 5, 1860, p. 114.— U. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 543, pi. 114, figs. 17a, b. — Egger, Abh. kon. bay. Akad. Wiss. Muiichen, 

 CI. ii, vol. 18, 1893, p. 353, pi. 12, figs. 19, 20— Flint, Rep. U. S. Nat. Mus., 

 1897 (1899), p. 316, pi. 63, fig. 5. 



Description. — Test thick, slightly elongate; early chambers close 

 coiled, later ones elongate and oblique; sutures somewhat depressed; 

 wall smooth, apertural end rather pointed. 



Length less than 1 mm. 



Distribution. — The only published record for this species in the 

 North Pacific is that of Brady in the Challenger Report. It occurred 

 off the Philippines in 95 fathoms. I have had material referable to 

 this species only from Nero 2055 in 536 fathoms near the Hawaiian 

 Islands. 



This species is close to C. crepidula , from which it seems to differ 

 only in the less compressed and less elongate form of the test. 



CRISTELLARIA GIBBA d'Orbigny. 



Plate 35, fig. 1. 



Cristellaria gibba d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839 

 "Foraminiferes," p. 63, pi. 7, figs. 20, 21.— H. B. Brady, Rep. Voy. Chal- 

 lenger, Zoology, vol. 9, 1884, p. 546, pi. 69, figs. 8, 9. — Burrows, Sherborn 

 and Bailey, Journ. Roy. Micr. Soc, 1890, p. 259, pi. 10, figs. 19, 21.— Egger 

 Abh. kon. bay. Akad. Wiss. Miinchen, CI. n, vol. 18, 1893, p. 352, pi. 12, figs 

 21, 27.— Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 1894, p. 61, pi. 10 

 figs. 287, 288. — Fornasini, Mem. Accad. Sci. 1st. Bologna, ser. 5, vol. 4, 1894 

 p. 221, pi. 3, fig. 20.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 55.— 

 Flint, Rep. IT. S. Nat. Mus., 1897 (1899), p. 317, pi. 64, fig. 1.— Bagg, Proc. 

 U. S. Nat. Mus., vol. 34, 1908, p. 147. 



Description. — Somewhat oval; biconvex; inner face decidedly con- 

 tracted; peripheral margin somewhat keeled; wall smooth; sutures 

 not depressed; apertures of earlier chambers usually apparent, even 

 in adult condition. 



Length usually 1 to 1.5 mm. 



Distribution. — Goes records this species from a single Albatross 

 station in the eastern Pacific, D3376 in 1,132 fathoms. Bagg records 

 it from two stations off the Hawaiian Islands, Albatross D4000 in 

 104 to 213 fathoms and H4694 in 865 fathoms. I have had material 

 from one Nero station, 2055 off the Hawaiian Islands in 536 fathoms 

 and from three Albatross stations off Japan, D4958 in 405 fathoms, 

 bottom temperature 40.1° F.; D5055 in 124 fathoms, bottom tem- 

 perature 56.6° F.; and H4882 in 248 fathoms, bottom temperature 



