86 NATURAL HISTORY 



GENUS VIII. 



K O L P O D A. 



This genus is thus defined by Muller : '^ An invisible, 

 very simple, ])ellucid, flat, crooked animalcule." They 

 vary much in external form ; but figures 80 and 89 will 

 give a general idea of the genus. (See Book III.) 



149. KoLFODA lamella (Trachelius lamella,^.) The la- 

 minated Kolpoda, shewn at figure 72, is a thin, long, 

 membraneous animalcule, having its anterior extremity 

 curved ; its resemblance generally to the other species of 

 this genus is slight. The mouth is placed longitudinally 

 on the inferior side of the body, and is recognized with . 

 difficulty. It has a peculiar undulatory motion, often 

 progressing on one of its edges. Scarce. 



150. KoLPODA gallinula. The pullet Kolpoda. — This 

 animalcule is somewhat egg-shaped, with its apex 

 slightly bent -, it is very transparent, although its poste- 

 rior is often filled with semi-opaque matter. Found in 

 salt-water. 



151. Kolpoda rostrum {Loxodes rostrum, E.) The 

 hooked Kolpoda. — This is an oblong animalcule, with the 

 fore part bent like a hook, and the hind part rounded : 



