REPORT ON THE RADIOLARIA. 115 



Dimensions. — Diameter of the shell 0'07 to 012, of the pores O'OOS to 0-016, of the bars 

 0-001 ; length of the tubuH 0-02 to O'OS, inner aperture O'OS to 0-04, outer aperture 0-02 to O'OS. 

 Habitat. — Indian Ocean, Sunda Strait, Eabbe. 



6. Solenosphcera ascensionis, u. sp. {PI. 7, fig. 9). 



Shell somewhat irregular, subspherical, with polygonal pores of different size. Twelve to fifteen 

 pores in the half meridian of the shell, two to eight times as broad as their bars. Porous tubuli of 

 the shell of variable number (in one and the same colony), three to nine, mostly five to seven ; 

 conical or nearly cyhndrical, irregular, about as long as broad at their base. Inner aperture of the 

 tubuli two to four times as broad as the broadest pores, and double as broad as the truncated 

 circular outer aperture. 



Dimensions. — Diameter of the shell 01 to 0-12, of the pores 0-004 to 0-018, of the bars 0-002, 

 length of the tubuli 0-04, inner aperture 0-04, outer 0-02. 



Habitat. — South Atlantic, near Ascension Island, Station 343, surface. 



Subgenus 3. Solenosphyra, Haeckel. 



Definition. — Tubuli of the shell fuuuel-like, the outer aperture much larger than 

 the inner. 



7. Solenosphcera cornucopia, n. sp. (PL 7, fig. 8). 



Shell spherical or suljspherical, with rouncUsh pores of different size. Ten to twelve pores in the 

 half meridian of the shell, two to three times as broad as the bars. Porous tubuli of the shell of 

 variable number (in one and the same colony), four to eight, mostly five to seven, funnel-like, about 

 as long as the diameter of the shell. Inner aperture of the tubuli commonly two-thirds or three- 

 fourths as broad as the radius of the shell (or somewhat smaller), only one-half or two-thirds as 

 broad as the dilated and truncated outer aperture. 



Dimensions. — Diameter of the shell 0-07 to 0-09, of the pores 0-006 to 0-018 ; length of the 

 tubuli 0-06 to 0-08, diameter of the inner aperture 0-04 to 0-0.5, of the outer 0-06 to O'OS. 



Habitat. — Central Pacific, Station 271, depth 2425 fathoms. 



8. SolenospjhcBra amalthea, n. sp. 



Shell irregular roundish or spherical, with small circular pores of different size. Fifteen to twenty 

 pores in the half meridian of the shell, but still not as broad as the bars. Porous tubidi of the shell 

 of variable number (in one and the same colony), three to six, commonly four or five, funnel-Uke,. 

 about as long as the radius of the shell. Inner aperture of the tubuU al)out half as broad as the 

 radius of the shell, only one-half or one-third as broad as the truncated outer apertm-e. (This 

 species is intermediate between the preceding and Siphonosplucra clwnopliora, PL Q, fig. 5.) 



