IS 



T\(iK sk()(:si:i;nc, 



In till' Ostracuil liliTMl uic ttxi there is hmient^Mr nieoiisislencN' :ni(l ((iiilnsidn in 

 the denomination of certain limbs, especially with leiianl to the tliree posterior ones. Tliis is 

 due to a great extent to the very fact that the functions and not llie homology of these organs 

 have been taken as a basis for the terminology. Thus J. ]). ]~)ana, the first writer to interpret 

 the appendages of the t' v p v i d i n i d s correctly. n;inies the three jiosterior linibs as follows 

 in his work of 1852.* 



tlie st'coiid pair of maxillae ( the lil'tli 



In the Cv p r i d i n i d s 



In the (' v p r i d s 



Tn the (' \- t h e !■ i d s 



\ 



pair of limbs) 



) 



^^'e find the same terminology also employed, for instance, by G. 0. Saus, 1865, C. Claus, 

 1865, G. S. Bhady, 1868 a and b, and on the whole by G. S. Brady and A. M. NORMAN, 1889 

 and 1896. — G. 0. S-ARS has also used this terminology on the whole in his work of 1887. 

 Only in the case of the last two pairs of limbs in the C y p r i d i ri i d s are there variations 

 in this work; these limbs are called either the next to the last and the last pairs of limbs or 

 the first and the last pairs of limbs. 



The terminology of the appendages used by G. W. MULLER in his large monograph (^f 

 1894 is also very inconsistent — perhaps even more than that of the other authors. Tluis in 

 the special part of this work the three limbs in question are called: 



In the C y p r i d i n i d s 



C the second maxilla (--^ the fifth ])air of limbs) 



I 



In the H a 1 o c y p r i d s 

 and C y p r i d s 



In the Nesideids and I 

 C y t h e r i d s | 



first 

 cleaning 



maxilla r 

 first 



second 



first 



second 



third 



limb 



{-- 



(■- 



( = 



sixth 

 seventh 



fifth 



sixth 



seventh 



fifth 



sixth 

 seventh 



) 



In the same part of this work the fifth limb of the P o 1 y c o p i d s is termed simply 

 ,,FuB" and the fifth and sixth limbs in the C y t h e r e 1 1 i d s are called the third and fourth 

 post-oral ** limbs. In the general part of this work G. A\\ MtJLLER usually calls these three 



- Willi reward to tliese appendages in tin- II a 1 o <■ y p r i li s lliis writer lias (onimitled very .serious mistakes. 

 ** For file term post -oral .see p. 21 below. 



