FORAMINIFERA OF NORTH PACIFIC OCEAN. 



65 



SACCORHIZA RAMOSA (H. B. Brady). 



Hyperammina ramosa II. B. Brady, Quart. Journ.Micr. Sci., vol. 19, 1879, p. 33, 

 pi. 3, figs. 14, 15; Donkschr. kais. Akad. Wise. Wien, vol. 42, 1881, p. 98; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 261, pi. 23, figs. 15-19.— H. 

 B. Brady, Parker, and Jones, Trans. Zool. Soc. London, vol. 12, no. 7, 

 1888, p. 217, pi. 41, figs. 1-4, 13.— Egger, Abh. kon. bay. Akad. Wiss. Mun- 

 chen, vol. 18, 1893, p. 255, pi. 4, fig. 15.— Goes, Kongl. Svensk. Vet. Akad. 

 Handl., vol. 25, no. 9, 1894, p. 18, pi. 4, figs. 61, 62.— Chapman, Proc. Zool. 

 Soc. London, 1895, p. 13.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 

 22.— Flint, Rep. U. S. Nat. Mus., 1807 (1S99), p. 270, pi. 11, fig. 1.— Rhum- 

 bler, Arch. Protistk., vol. 3, 1903, p. 260, figs. 101 a, b (in text). 



Saceorhiza ramosa Eimer and Fickert, Zeitschr. wiss. Zool., vol. 65, 1899, p. 670. 



Description. — Test free, proloculum ovoid passing into the branched 

 tubular portion, branching irregular, wall fairly thick, composed of 

 sand, more or less coated 

 with sponge spicules exte- 

 riorly, rough; apertures at 

 the ends of the tubes, color 

 grayish. 



Distribution. — This spe- 

 cies seems to be generally 

 distributed in the whole 

 North Pacific, twenty-five 

 or more well scattered sta- 

 tions having been noted. 

 However, none of these rec- 

 ords are north of latitude 

 40° N., but this is probably 

 due to the fact that little 

 material has been available 

 in deep water north of that 

 line. 



Complete specimens are 

 very rare, but the frag- 

 mentary specimens, which 

 are readily recognized, are 

 common. This species is very different from the typical Hyperam- 

 mina with the single tube and the ordinary sand grains. The invest- 

 ment of sponge spicules shows a selective character rather marked, 

 for they are present on the test even from deep red-clay areas where 

 spicules are not frequent in the same bottom sample in which the 

 tests occur. 



The figured specimen had very few spicules compared with the 

 majority of specimens. 



Specimens were obtained in the cold water off Japan in 39 fath- 

 oms, Albatross station D4946. The greater number of stations are 

 over 1,000 fathoms, however, the deepest record of its occurrence 

 being 3,125 fathoms. 



16777— Bull. 71—10 5 



FIG. 81.— SACCORHIZA RAMOSA. X 100. 



