132 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



CASSIDUUNA CALABRA (Seguenza). 



Burseolina calabra Seguenza, Atti Accad. Lincei, ser. 3, vol. 6, 1880, p. 138, 

 pi. 13, figs, la, b. 



Cassidulina calabra H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 431, pi. 113, figs. 8a-c. — Chapman, Proc. Zool. Soc, 1895, p. 25; Journ. 

 Linn. Soc, vol. 30, 1910, p. 406.— Baqg, U. S. Geol. Survey Bull. 513, 1912, 

 p. 42, pi. 12, figs. la-c. — Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, 

 1914, p. lOlG.— SiDEBOTTOM, Journ. Roy. Micr. Soc, 1918, p. 128, pi. 3, 

 fig. 22. 



Description. — Test generally rounded, close-coiled, chambers dis- 

 tinct but the sutures not depressed; apertural face concave, wall 

 smooth, finely punctate; aperture a short, obliquely rounded slit; 

 color whitish. 



Diameter 0.4 mm. 



Distribution.— The only record for the Atlantic for this species is 

 that of Pearcey who records it from Scotia station 346 in 56 fathoms 

 (102 meters), Burdwood Bank, south of the Falklands. It thus 

 comes into the southern Atlantic area. 



The species was recorded by Brady from Raine Island, Torres 

 Straits, 155 fathoms (283 meters), and off Kandavu, Fiji Islands, 

 610 fathoms (1,114 meters), by Chapman off Funafuti in 2,400 

 fathoms (4,400 meters), and by Sidebottom from the east coast of 

 Australia. Bagg records it from the Pliocene at San Pedro, Calif. 

 Seguenza's material from the Miocene of Italy is, according to Brady, 

 the same as this southern recent species. 



CASSIDULINA PARKERIANA H. B. Brady. 



Cassidulina parkeriana H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, 

 p. 59; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 432, pi. 54, figs. 11-16.— 

 Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. II, vol. 18, 1893, p. 304, 

 pi. 7, fig. 37.— Chapman, Proc. Zool. Soc, 1895, p. 26; Journ. Quekett Micr. 

 Club, 1907, p. 128, pi. 9, fig. 7; Geol. Brit. Antartic Exped.,vol. 2, 1907-9, 

 pp. 30, 43, 54, pi. 2, fig. 13.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 

 1911, p. 100, figs. 154a-c (in' text). —Pearcey, Trans. Roy. Soc Edinburgh, 

 vol. 49, 1914, p. 1016. 



Description. — Test elongate, cylindrical, the very early portion 

 spirally coiled, the later chambers forming an uncoiled biserial series, 

 making up the larger part of the test, circular in cross section ; cham- 

 bers broad and high, considerably inflated, wall calcareous, smooth; 

 sutures much depressed; aperture very broad and short, occasion- 

 ally subcircular, often with a broad toothlike plate nearly filling the 

 opening; color, white. 



Length 0.50-0.65 mm. 



Distribution. — From the published records this seems to be a 

 species of the Indo-Pacific. Brady's original specimens were from 

 the west coast of Chile, and apparently the species extends north- 



