RUSTACEA COPEPODA 



CHAP. 



Fam. 6. Chondracanthidae. These Copepods infest the gills 



- -Th.l. 



Abdl 



Fin. 40. Bmnnfochus, sp. (Bomo- 

 lochidae), x 8. Abd.l, 1st abdo- 

 minal segment ; Ant.1, Ant.L\ 

 1st and 2nd antennae ; Mx.l, 

 jl/.'-.;.', 1st and 2nd maxillae ; Mxp, 

 inaxillipede ; Th.l, 1st thoracic 

 appendage. (After Gerstaecker. ) 



and even the mouth of various marine tish, such as the Gurnard, 



Plaice, Skate, Sole, and many others. ..Ant.1. 



The sexual dimorphism is very marked, 



the female being large, indistinctly 



segmented, and with irregular paired 



processes protruding from the sides of 



the body, giving the animal a rnon- 



Th.l 



FIG. 42. Dwarf male of Lernen- 

 toma cornuta ( Chondracan- 

 thidae), x 10. Ant.l, Ant.2, 

 1st and 2nd antennae ; Th.l, 

 1st thoracic segment. (After 

 FIG. 41. Chondracanthus zei, 9 > x 4. Gerstaecker.) 



strous form (Fig. 41) ; while the male (Fig. 42) is very small, has a 



