OBTAINED AT THE ISLE OF FRANCE. 29 
character down the centre of the body of the animal. The outer surface of the body 
resembles very much that of the common Lumbricus, but has numerous corrugations 
over the surface of the rings, which, however, become obliterated in particular motions 
of the animal. The tentacula have a double row of cilia, arising laterally from the supe- 
rior surface, which turn in upon anything that is seized, so as to embrace it tightly : but 
when at rest, they are doubled up into little coils or knots, and are only expanded when 
the animal is searching for food. When engaged in this occupation, it elevates itself 
out of the tube, turns the disc down upon the adjacent part of the stone with very deli- 
berate motion, and examines the surface with minute attention, the tentacula moving 
about, so as to ensure the entrapping of any minute objects which may rest there. 
PLATE V. 
1, 2. AcTINIA SANGUINEO-PUNCTATA. 
Fig. 1. The entire animal. 
2. The oral disc, with several of the tentacula. 
3—8. XeEn1A DESJARDINIANA. 
3. Exhibits the appearance of the animal of about twice the natural size. 
4. Is an enlarged view, showing the mode of origin from the cortez. 
5. Exhibits the posterior surface of one of the rays. 
6. The superior surface. 
7. A section of the peduncle. 
8. A section just beneath the disc, showing the tubes branching off into the 
various rays. 
9—14. ANISOMELUS LUTEUS. 
Fig. 9. Represents the animal of the natural size. 
10. A magnified view. 
11. The superior rings, and inferior part of the disc, still more enlarged, to exhi- 
bit the dots, the neck, the small tentacula, and the feet. 
12. A foot, with its spines. 
13. Shows the proportion of the tube and globules in the middle of one of the 
tentacula. 
14. The apew of the same tentaculum. 
