REPORT ON THE RADIOLARIA. 1579 



9. Aulographis pistillum, n. sp. (PI. 105, fig. 6). 



Eadial tubes club-shaped, robust, straight, gradually thickened towards the distal end. Terminal 

 branches eight to ten (usually nine), conical, smooth, slightly curved, divergent outwards like a 

 regular corona. 



Dimensions. Length of the tubes 0'5 to 0'6, distal breadth 0'04 ; branches 0'08. 



Habitat. North Atlantic, Station 354, depth 1675 fathoms. 



Subgenus 2. Aulographella, Haeckel. 



Definition. Terminal branches of the radial tubes without terminal spathillse, but 

 with lateral teeth or secondary spines. (Tubes usually very stout and robust, club- 

 shaped.) 



10. Aulographis tricena, n. sp. (PI. 105, fig. 8). 



Eadial tubes club-shaped, straight, tapering gradually towards the rounded proximal end. 

 Terminal branches constantly three, divergent, very stout, eight to ten times as long as the breadth 

 of the tube, each studded with three to six irregular, conical, secondary spines. Sometimes the 

 branches become forked, the species passing over into Auloceros cervinus. 



Dimensions. Length of the tubes 1'2 to T5, breadth 0'004 to 0'06 ; branches 0'3 to 0'5. 



Habitat. South Pacific, Station 299, depth 2160 fathoms. 



11. Aulographis martagon, n. sp. (PI. 105, fig. 7). 



Eadial tubes club-shaped or slenderly conical, strongly thickened towards the distal end. 

 Terminal branches six to nine, conical, slightly curved, divergent outwards, studded outside with 

 small, conical, secondary spines, twice to three times as long as the breadth of the tube. 



Dimensions. Length of the tubes I'O to 1*2, breadth 0'04 to 0'05; branches 01 to 015. 



Habitat. South Atlantic, Station 318, depth 2040 fathoms. 



12. Aulographis flammabunda, n. sp. (PL 105, fig. 9). 



Eadial tubes club-shaped, more or less curved, with thickened distal ends. Terminal branches 

 three to six, conical, very stout, three to four times as long as the breadth of the tube, densely 

 studded with numerous, crowded, conical, secondary spines, which are very irregular and more or less 

 curved, resembling the flames of a fire. 



Dimensions. Length of the tubes I'O to 1'2, distal breadth 0'08 to 01; branches 0'2 to - 4. 



Habitat. South Pacific, Station 302, depth 1450 fathoms. 



