CEABS AND SHRIMPS. 
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colourless that they can scarcely be detected but for the 
eyes, which aro of a lovely blue hue, and are carried at 
the end of long stalks. 
Our common Prawns ( Palcmori ) are beautiful examples 
of pellucid structure ; and when alive, they form, from 
this circumstance, from the dark-brown lines with which 
they are adorned, from their elegant shape, and sprightly, 
graceful motions, very interesting objects in a marine 
Aquarium ; the more so as they are among the most easily 
kept, being readily reconciled to captivity, and keeping 
themselves in health and condition, without trouble to their 
possessor, on the animalcules and garbage that else would 
accumulate on the bottom. Their manner of feeding, by 
the hand-like use of their long slender claws, which seize 
the food and present it to the mouth ; the brushes of hair 
with which some of the feet aro fringed, serving as cleansing 
organs, and the effective way in which these are made to 
reach all parts of the body, and to keep it scrupulously 
clean; the flapping of tho false feet beneath the abdomen 
in the process of ordinary swimming; the occasional sud- 
den stroke upon the water of the broad tail-plates when 
the creature is alarmed, causing it to shoot backward with 
the rapidity of thought to the distance of several inches; 
the structure ef the eyes, and the singular reflection of a 
candle from their interior, like the flash of a policeman’s 
bull's-eye; and even the internal organs, tho pulsation of 
the heart, and the passing of the food, as masticated, 
into the stomach, can all bo seen and studied to advan- 
tage in these parlour pets. An hour’s observation on 
their organisation and their manners, if our readers have 
the opportunity of watching any marine Aquarium, 
