652 PROCEEDINOS OF THE NATIONAL MUSEUM. vol.51. 



RHABDAMMINA ABYSSORUM W. B. Carpenter, var. RADIATA, new variety. 



Test with a globular central chamber from which radiate numerous 

 arms, with annular constrictions, largest diameter of the arms near 

 the central chamber thence tapering toward the outer end; wall of 

 fine texture, smooth, reddish brown in color. 



Type-specimen. — (Cat. No. 9101, U.S.N. M.) from Albatross station 

 D 5654, in 805 fathoms. Gulf of Boni. 



SACCAMMINA SPHAERICA G. O. Sars, var. CATENULATA, new variety. 



Saccammina sphaerica H. B. Brady (part), Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 253, pi. 18, fig. 16. 



Test with a wall like that of typical S. sphaerica in structure, but 

 several chambers present, joined together in a linear series. The 

 largest chamber adherent. 



One specimen almost exactly like the figured specimen of Brady 

 was found at Albatross D 5637, in 700 fathoms, off Bouru Island. In 

 the figure given by Brady a pebble forms the base for attachment, in 

 our specimen it is attached to another foraminifer. 



Type-specimen. — (Cat. No. 9150, U.S.N.M.) from Albatross station 

 D 5637, in 700 fathoms, Bouru Island. 



DENDROPHYRA ATTENUATA, new species. 



Test elongate, compressed, consisting of a central, elongated body 

 with slightly projecting, apertural branches on either border, irregu- 

 larly alternating; wall composed of sand grains with many spicules; 

 color light gray. 



Length up to 15 mm. 



Type-specimen.— (Cut. No. 9102, U.S.N.M.) from Albatross station 

 D 5670, in 1,181 fathoms, Macassar Strait. 



AMMODISCUS INCERTUS d'Orbigny, var. DISCOIDEUS, new variety. 



Variety differing from the t}7)ical in having the sides rapidly in- 

 creasing in diameter, the width of the coils in side view very much 

 less than in the typical and the border in apertural view veiy broadly 

 rounded, the periphery often nearly straight in the central portion. 



Diameter of microspheric specimens up to 2.5 mm. 



Type-specimen. — (Cat. No. 9103, U.S.N.M.) from Albatross station 

 D 5658, in 510 fathoms. Gulf of Boni. 



The microspheric form of this variety is only about one-half the 

 size of the microspheric form of the typical. 



HAPLOPHRAGMOIDES SPHAERBLOCULUM, new species. 



Test biconvex, composed of about three coils, chambers compara- 

 tively few, five in each coil, subspherical, sutures deeply depressed; 

 wall composed of fine sand grains with a reddish-brown cement, the 

 sutures and umbiUcal depression more or less filled with a light col- 



