• THE ORDERS OF TELEOSTOMOUS FISHES 447 



Fam. Carchariidae (Odontaspidas) 



Mitsukurinidse (Mitsukurina, Scapanorhynchus) 

 " Alopeciidae 

 ' ' Lamnidas 

 ' ' Cetorhinidae 

 " Rhinodontidae 

 " Spbyrnidas 

 ' ' Galeidas 

 Superorder Chim^roidei » auct. 

 Order Holocephali /. Muller 

 Fam. Ptyctodontidse 

 " Squalorajides 

 " Myriacanthida? r 

 " Menaspidae 

 " Rhinochimaeridas 

 " Callorhynchidae 

 " Chimaeridae 

 Subclass ARTHROGNATHI Dean 2 Inc. Sedis. 

 Order Anarthrodira Dean 



Suborder Stegothalami Dean 

 Fam. Macropetalichthyidas 

 " Asterosteidae Inc. Sedis. 

 Order Arthrodira A. S. Woodward 

 Suborder Temnothoraci Dean 



Fam. Chelonichthyidae 

 Suborder Artb.ro thoraci Dean 

 Fam. Coccosteidae 

 " Trachosteidae 

 " Dinichthyidae 

 " Mylostomidas 

 " Selenosteidae 

 Subclass TELEOSTOMI (Bonaparte) Owen 

 Infraclass Dipneusti Haeckel 

 Order Ctenodipterini Pander 

 Fam. Uronemidas 

 " Ctenodontidae 

 Order Sirenoidei J. Muller 

 Fam. Ceratodontidas 

 " Lepidosirenidas 

 Infraclass Crossopterygii Cope 



• 'See Garman in Bull. Mus. Comp. Zool., Vol. XLI, pp. 243-272; and 

 Dean, " Cbimaeroid Fishes and their Development,'- Carnegie Inst., 

 Washington, 1906. 



2 The classification's from Dean in Mem. N. Y. Acad. Sci. Vol. II, Part 

 III, ic-oi.pp. 120-123. 



