Page:A Voyage of Discovery and Research in the Southern and Antarctic Regions Vol 1.djvu/444

344 Coscinodiscus lineatus.  lunæ.  subtilis. Dictyocha aculeata.  speculum. Fragilaria acuta.  granulata.  rotundata.</li> <li> duodenarias.</li> <li>Pyxidicula.</li> </ol>

This contains so very much larger a proportion of Dictyochas than are found in other samples, that they must have been selected by the Salpa, with whom therefore they are apparently a favourite kind of food.

Small loose-textured, tender-threaded masses (similar to the Oscillatorias of our waters) interspersed with small grains. They consist principally of the siliceous, very tender and long side tubes of the quite new and very peculiar genus Chætoceros. The nature of the grains is still obscure. The other forms are interspersed in the loose mass; they all still show their dried ovaries, evidencing that they were collected alive.


 * 1)  Darwinii.
 * 2) Hookerii.
 * 3) Rossii.
 * 4) Buchii.
 * 5) Humboldtii.
 * 6)  dichaeta.
 * 7) tetrachaeta.
 * 8) Coscinodiscus lineatus.
 * 9) subtilis.
 * 10) Dictyocha aculeata.
 * 11) Binoculus.
 * 12) Dictyocha ornamentum.
 * 13) speculum.
 * 14) Fragilaria Amphiceros.
 * 15) granulata.
 * 16)  obtusus.
 * 17) Lithobotrys denticulata.


 * 1)  scalaris.
 * 2) Biddulphia ursina.
 * 3) Coscinodiscus Apollinis.
 * 4) cingulatus.
 * 5) lunæ.
 * 6) Coscinodiscus subtilis.
 * 7) velatus.
 * 8) Fragilaria rotundata.
 * 9) Gallionella sol.
 * 10) tympanum.