IOO One Thousand Objects 



times its length. Collecting in colonies, so as to form a 

 white film on duckweed, &c. 



789. BRANCHED BELL ANIMALCULE (Carchesium poly- 

 pinuni). A kind of branched Vorticella, with a retractile 

 stem; each branch terminated by a little bell, and forming 

 an exceedingly beautiful object. 



790. FOXGLOVE EPISTYLIS (Epistylis digitalis). Also 

 like a branched Vorticella, with a rigid stem. The bells 

 terminating the branches, like foxglove flowers. Parasitic 

 on the body of the four-horned Cyclops. 



791. EGG ANIMALCULE (Trachelius ovum}. Egg-shaped, 

 with a kind of proboscis, so that at times it is almost pear- 

 shaped. Body ciliated. In stagnant water. 



792. GREEN TOP ANIMALCULE (Urolcptus piscis). 

 Top-shaped, of a green colour. Body and tail covered 

 with cilia. Amongst dead leaves in ponds. Early spring. 



793. HYHRA PARASITE (Kerona polypornm). Parasitic 

 on the brown Hydra. Whitish and somewhat kidney- 

 shaped, with a series of cilia in front. 



794. MUSSEL STYLE-BEARER (Stylonychia mytilus). 

 Oblong and flattened, with a row of strong cilia, armed 

 posteriorly with numerous styles. Climbs and swims, back 

 downwards. In stagnant water. 



795. PLATTER STYLE -BEARER (Ettplotcs patella). 

 Nearly circular, covered with a shield or carapace; body 

 armed with styles and hooks. Crawls backwards and 

 forwards amongst duckweed, or swims, with great 

 facility. 



Although ROTIFERS are enumerated here, their affini- 

 ties are with Crustaceans rather than with the Infusoria, 

 with which they were till recently associated. 



796. HAIRY ROTIFER (Chcetonotus lams). Elongated, 

 with hairs in lines down the back and forked tail. In 

 muddy water. (PI. X., fig. 10.) 



797. LARGE HAIRY ROTIFER (Chtztonotits maximns) 

 is a larger species, with the hairs all short and equal. 



798. The CONOCHILUS (Conochilusvolvox). United in 

 masses, enclosed in a gelatinous envelope. From ten to 

 forty animals compose a spherical revolving mass. 



