96 J. M. ESSENBERG. 



PLATE X. 



FIG. 46. Adult gonopod. X 17. 



FIG. 4947. Gonopod in various stages of metamorphoses. X 17. 

 



Symbols : 



(Hi Dorsal copulatory hook. 



d^r Dorsal branch of fourth ray. 



kn Knobs. 



sp Spoon-like structure. 



t^r Teeth of third ray. 



t4r Teeth of fourth ray. 



~'h Ventral copulatory hook. 



v^r Ventral branch of fourth ray. 



ir-ior First to tenth rays of anal fin. 



