86 



but as for Lernaeopodidae, there is a considerable resemblance in various points, e. g. in the 

 structure of the male and the female, and especially in that of the larvae; at the same time, 

 there are numerous and important differences. However, as the family Lernseopodidae is 

 comparatively well known 1 ), I do not think it necessary to repeat and compare all the 

 characteristics of the two families, but will content myself with stating my opinion that the 

 Choniostomatidae, though coming much closer to the Lernaeopodidae than to any other form 

 of parasitic Copepoda, yet differ very much from them in the way they lay their eggs, in 

 their development after the first larval stage, in several peculiarities in the internal and 

 external structure of the male (e. g. in that of the mouth), and most conspicuously, in the 

 structure of the mouth, the antennae and the maxillipeds of the female. A comparison of the 

 figures in: W. Kurz: Studien iiber die Familie der Lemceopodiden (Zeitschr. fur wiss. 

 Zool., B. XXIX, 1877)« with my present work, will give the best idea of the resemblances 

 and the differences between the adults of these two families. In elucidation of the matter 

 I will add, that Kurz concludes from the development that the pair of limbs which in the 

 females of Lernseopodidae are fused together into one long aim that serves as organ of 

 fixation, are the »first pair of maxillipeds. « If this be correct — which is quite possible 

 — this appendage would correspond to what I term the maxillae. 



1) In the above-mentioned „Grundziige" (p. 557 — 58), Claus enumerates most of its characteristics and 

 refers to the most important accounts of its structure, and development. 



