PRANIZA. 
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on the sides, with lamellar pieces belonging to the last pair 
of false legs; the last segment of the abdomen is always 
lamellar and much larger than the segments before it. The 
legs are short, and formed for walking or for holding on. 
Tam. PRANIZIDM , 
In this family the thorax is composed of five rings, and 
the limbs corresponding to the two first pairs of legs are 
rudimentary, or wanting. The five last pairs of legs are 
slender and formed for walking. Abdomen narrow, but well 
developed. 
Gen. 122. PRANIZA, Leach. 
Pranizce are minute marine Crustacea. By means of their 
legs they can creep on the bottom, which they do slowly; 
but they swim with greater rapidity, propelling themselves 
forwards by the quick motions of a series of ciliated fins 
placed beneath the tail. Of their economy nothing is known. 
They are characterized by having four unequal antennae ; two 
sessile eyes ; an elongated body divided into three segments, 
of which the two anterior, or thoracic, are very small, and 
the third, or abdominal, very large. They have ten legs, a 
