64 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



It may be worthy of note that at the shallowest station, Albatross 

 station D5026, the bottom temperature in September was 30.4° F., 

 even colder than at the abyssal stations where the species was found. 



Fig. 80. 



-Hyperammina subnodosa, from the Okhotsk Sea X 10. o, side view; 6, section of a 



rOUTION OF THE CHAMBER LAID OPEN. 



Genus SACCORHIZA Eimer and Fickert, 1899. 



Hyperammina H. B. Brady (part), Quart. Journ. Micr. Sci., vol. 19, 1879, p. 33; 



Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 257. — Riiumbler, Nachr. 



kon. Ges. Wiss. Gottingen, 1895, p. 82; Arch. Protistk., vol. 3, 1903, p. 257. 

 Saccorhiza (type, Hyperammina ramosa H. B. Brady), Eimer and Fickert, 



Zeitschr. wiss. Zool., vol. 65, 1899, p. G70. 



Description. — Test free, consisting of an ovoid proloculum with a 

 branching tube, composed of sand grains with many sponge spicules 

 on the exterior, rough; open ends of the tubes serving as apertures. 



This genus has been made for this species, which, in its branching, 

 irregular habit and the almost invariable inclusion of sponge spicules, 

 differs from the typical Hyperammina. The genus made by Eimer 

 and Fickert has therefore been used. The other species of Rhumbler, 

 with its inclusions of spicules, has also been included here, although 

 known from but two fragmentary specimens. 



