FORAMINIFERA OF THE ATLANTIC OCEAN. 



11 



outer portion closely cemoiitod unci somewhat Irijible, inner jjortiou 

 nrmly cemented, smootli!}" ftnished on the mteiior surface; withm, 

 and about the apertures, which are formed by the o])en ends of the 

 tubular portions, often of a reddisli-]>r(tW!i coloi-. 



Diameter, up to 5 mm. 



Dist7nhutioii. — Brady in the ChalloKjer report records this species 

 from one Porcupine station off the British Isles in 630 fathoms and 

 from one Atlantic CTiallenger station, No. 78, m 1,000 fathoms east 

 of tlie Azores. Flint records it from one Albafross station, D2569, 

 in 1,782 fathoms off Marthas Vureyard. In the Alhatro)^)^ material I 

 have had from the western Atlantic, it has occurred at 14 stations, 

 but all in the area betweeri Georges Bank off Cape fod southward 

 toward Cape Hatteras. It has n.ot occurred south of this general 

 region. In depth the records range from 568 to 2,033 fathoms, the 

 average around 1,500 fathoms, bottom teniperatui-es range from 

 36.8 to 39° F., showing rather cold water distributio)i, but not occur- 

 ring in the colder region off the Grand Banks of Ne^vfoundland, 

 where, for instance, Hyperammina suhnodosa is so very abundant. 



Astrorkiza angulosa — material e^tamined. 



ASTRORHIZ.\ ORASSATINA H. B. Brady. 



Asliorhiza ciaasollna H. B. Bhady, Quart. Journ. Micr. Sci., vul. 21. 1881, }>. 40: 

 Rep. Voy. Challenge)-. Zoologj', vol. 9, 1884, p. 233, pi. 20. tigs. 1-9.— Goes, 

 Kongl. Svensk. Vet. Akad. Ilandl., vol. 25, No. 9, 1894, p. 13. pi. 2. iiga. 

 11-15; Bull. Mus. Comp. Zool., vol. 29, lS9f), p. 19.--Flint, Rep. U. S. Nat. 

 Mu8., 1897 (1899), p. 2(i5, pi. 2.— Kiaek, Norske Nordhavd. Exp., No. 25. 

 1899. p. 4.-RHUMBLER, Arch. Prot., vol. 3, 1903, p. 220, tig. 42 (in text).— 

 ('usH.\iAN, Bull. 71, U. S. Nat. Mus., pt. 1. 1910, p. 22, lig. (in text).- - 

 Pearcey, Trans. Roy. Soc. p:dinburgh, vol. 49, 1914, p. 997. 



Rhabdamviina (Tossatinn Eixf er and Fickrrt, Zoitsclir. Wiss. Zool.. vol. 'i5, 1899, 



p. ms. 



Description. — Test subcylindrical or somewhat irregular, elongate, 

 ends rounded or truncate, with a tubular charab(>r within, of uneven 



