ARTEMIA. 
59 
It swims almost always on its back, and by means of its 
fins and tail it runs in all directions through the element 
it inhabits. It may be seen to mount, descend, turn over, 
spring forward, curve its body into the form of an arch, 
and then rebound, and deliver itself up to a thousand 
bizarre and capricious gambols. Their feet are in constant 
motion, and their undulations have a softness difficult to 
describe / 5 The tanks or reservoirs where I have already 
said they are chiefly found, are called clearers, as the 
liquor becomes clear while in them, and this effect is 
attributed by the workmen to this constant and rapid 
motion of their feet. “ So strongly persuaded , 55 says Mr. 
Rackett, “ are the workmen of this fact, that they are 
accustomed to transport a few of the worms from another 
saltern if they do not appear at their own . 55 
They are manifestly omnivorous, swallowing everything 
that comes in their way. Like the Chirocephalus, the un- 
dulatory motion of the branchial feet causes a current of 
water to flow in the kind of ca,nal formed between them, 
which carries everything within reach to their mouth. 
In this way we see them devouring even their own young. 
“If we observe , 55 says M. Joly, “in a small quantity of 
liquid, the mother at the time of parturition, we see the 
young group themselves round her body, and there is 
nothing more pretty, more agile, more graceful than this 
little troop. But soon the scene changes ; one, two, or 
three young ones are involved in the current which the 
motion of its fins causes, they pass into the gutter situated 
between these organs, and from thence come to the mouth 
of the mother. She at first disperses them, as being in- 
convenient bodies — perhaps she may even wish to spare 
them ; but soon afterwards they present themselves again. 
discussion between the two above-named savans, assisted by Messrs. Audouin 
and Turpin, M. Joly set himself to discover the real cause; and the result 
of his observations is, that the red colour depends upon the presence of 
myriads of a small monad, and that frequently the Artemise, from swallowing 
numbers of these, partake also of the same red hue. The little creature is 
called by M. Joly Monas Buvallii, and a long account of the whole discussion 
may be seen at the conclusion of M. Joly’s paper in the ‘Ann. Sc. Nat.’ 
