DEVELOPMENT 



'33 



Flo. 01. 



Eggs ami egg-cases of fishes. (From Uean.) A, H>li-Uo.-ttnmn, egg-case ; B, upper pale of 

 the same showing hooks and inicropyle (after Ayers) ; C, Myxitie (after Steenstrup) ; D, a 

 process of the same; E, retroinyzon muriinis; F, SeyttlWA (after Giinther); G, .Raja; H, 

 IleterodontHs (after Giinther); 1, \Ullorh unchity (after Giinther); J, Ceratwlus (after Semon); 

 K, Lepidosteus ; L, AcijKn.tcr ; M, Arias, showing larva (after Giinther) ; N, .s'erw/uw ; O, Alosa ', 

 P, Blennius, egg-capsules attached ; Q, the same enlarged (after Guitel). 



