22 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



FlG. 5.— ASTRORHIZA GRANU 

 LOSA. X 10. 



west Pacific, dredged by the Albatross in the 1906 cruise, D4979, 943 

 fathoms, D5031, 86 fathoms, and D5095, 58 fathoms. The first of 

 these stations is in the southern portion of the Japan Sea, the other 

 two being in shallow water south of Honshu Island, 

 Japan. 



The two stations from shallow water are in the 

 influence of cold currents and this may account for 

 the finding of this species at depths so much shal- 

 lower than the previous records. 



ASTRORHIZA CRASSATINA H. B. Brady. 



Astrorhiza crassatina H. B. Brady, Quart. Journ. Micr. Sci., 

 vol. 21, 1881, p. 47; Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 233, pi. 20, figs. 1-9.— Goes, Kongl. 

 Svensk. Vet. Akad. Handl., vol. 25, no. 9, 1894, p. 13, 

 pi. 2, figs. 11-15; Bull. Mus. Comp. Zool., vol. 29, 1896, 

 p. 19.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 265, 

 pi. 2. — Kimr, Norske Nordhavs-Exp., no. 25, 1899, 

 p. 4. — Rhumbler, Arch. Protistk., vol. 3, 1903, p. 

 220, fig. 42 (in text). 



Rhabdamrrrina crassatina Eimer and 

 Fickert, Zeitschr. wiss. Zool., 

 vol. 65, 1899, p. 668. 



Description. — Test subcylindrical or irregular, 

 elongate, ends rounded, internally with a tubular 

 chamber, open at both ends, but of .uneven diam- 

 eter, the apertures often more or less closed by 

 particles of sand ; walls thick, composed of fine sand, 

 loosely cemented at the surface; occasionally with 

 various foreign particles. 



Maximum length of typical specimens, 8-10 mm. 



Distribution. — Obtained by the Albatross at three 

 stations in the 1906 cruise, D4946, 39 fathoms, 

 D4949, 110 fathoms, and D4979, 943 fathoms. 

 These three stations are near Japan — one south of 

 Honshu Island, the other two southeast of Kiushu 

 Island. All three of these are within the influence 

 of the cold currents from the north. Goes records 

 this species from Albatross station D3407, off James 

 Island, Galapagos, in 885 fathoms from globigerina 

 ooze. 



The specimens referred to this species by Goes 

 are not typical. They are large, very rough, irreg- 

 ular tubes, with a very narrow and little dilated chamber, the longest 

 specimen measuring nearly 25 mm. Just what these tubes are it is 

 difficult to say, but their questionable position must simply be noted 

 until living material can be studied. 



Fig. 0. — Astrorhiza 

 crassatina. x 10. 



