BATHYBIUS. 



water Protamoeba (Fig. 8). The history of the life of an 

 orange-red Protomyxa adrantiaca, which I observed at 

 Lanzerote, one of the Canary Islands, is given in Plate I. 

 (see its explanation in the Appendix). Besides this, I here 

 add a drawing of the form of Bathybius, that remarkable 

 Moneron discovered by Huxley, which lives in the greatest 

 depths of the sea in the shape of naked lumps of pro- 

 toplasm and reticular mucus (vol. i. p. 344). 



Fig. 9. — Batliybins Hsec- 

 kelii, the " creature of primaeval 

 slime," from the greatest depths 

 of the sea. The figure, which is 

 greatly magnified, only shows 

 that form of the Bathybius which 

 consists of a naked network of 

 protoplasm, without the disco- 

 liths and cyatholiths which are 

 found in other forms of the same 

 Moneron, and which perhaps may 

 be considered as the products of 

 its secretion. 



The AriKebce of the present day, and the organisms most 

 closely connected with them, Arcellidce and Gregarinoi, 

 which we here unite as a second class of Protista under 

 the name of A'lnceboidea (Protoplasta), present no fewer 

 genealogical difficulties than the Monera. These primary 

 creatures are at present usually placed in the animal 

 kingdom without its in reality being understood why. 

 For simple naked cells — that is, shell-less plastids with a 

 kernel — occur as well among real plants as real animals. 

 The generative cells, for example, in many Algfe (spores 

 and eggs) exist for a longer or shorter time in water in the 



