SUBKINGDOM VERTEBRATA. 



CLASS PISCES. 

 ORDEE LEPTOCARDII. 



Amphioxus, Yarrel. 



lanceolatus, Yarrel. 



-*- > ^ 5? 1> 9 



SUBCLASS CYCLOSTOMATA. 

 Faiiiilt/ Mjirimdiv. 

 Myxine, L. 



anstralis. Jcnipis. 



^ >> ^ ?4« 



Bdellcstoma, -hh. Bimi 



(jirrhii t n iii , >S't7/ letj. 



Ji ^ 7 T> t ¥ 



Famihj J \'troiiiii.:ontida'. 

 Petromyzon, Art. 



' fliiviatilis, L. 



•\r :^ > <> ± #' 



S ?$ )\\ {V n) ^ fi nia #- M- ts "g ra 



branch] alls, L. 



SUBCLASS PALAEICHTHYES. 



ORDER CHONDROPTERYaiL 

 Suborder Plagiostomata 

 A. Selachoidei. 

 Fa;iiih/ ( 'archariidd'. 

 Carcharias, (^ur. 



jajoonicus, Schleg. 



^m ^^m m.m 



