DELATION OF BIOLOGY TO GEOLOGICAL INVESTIGATION. 337 



band column an exclusively fresh-water habitat is indicated for thai 

 family. The occurrence of the name of a family in more than one of 

 the columns indicates that it has representatives in more than one of 

 the three kinds of habitat. The two kinds of eases first mentioned 

 need no further explanation, but a variety of facts connected with the 

 latter kind need to be considered. These will be briefly stated in the 

 series of explanatory notes following the table, and certain other facts 

 and considerations will be presented in the closing paragraphs of this 

 review. 



TELEOSTEI. 



Marine. 



Brackish. 



Orthagoriscidse 

 Tetrodontida: . 



Triodontida' 



Ostraciontidir . . 

 Balistkhr 



Fresh. 



Tetrodoni ida 



Triacanthida' 



Hippocampidaa Hippocampidse 



Syngnathida? Syngnathida- 



Solenostomida? . . . .. 



Maltheidse 



Lophiida? 



Oratiida? 



Antcnnariida> 



Soleidie 



Pleuronectida- 



Macruridse 



Congrogadida' 



Fierasfeiida> -. - - - 



Ophidiida3 ■ 



Syngnathida?. 



Soli' id* . 



Pleuronectidae Pleuronectida'. 



Brotulid*. 



Brotulida 1 



Brotnlophidida' 



Bregmacerotidce 



Ranicepitiila 1 



Gadidaa ! Gadidae. 



Merluciidse 



Lycodida* 



Ateleopodidse 



Xenoceplialida' 



Amraodytidae 



Gadopsida? 



( Iryptacantludai 



Stichandoe 



Xiphidiontida- 



Acaiitliocliniila- 



I 'ha-nnpsida? , 



Nemophidida? 



Anarrbichadida- 



Cebidichthyidae , 



Blenniidae ] Bleimiida: 



Pataxida: : 



Batracbidse 



Leptoscopidx 



P'actyloscopida? 



H. Mis. 114, pt. 2- 



Batrachidse 



Batrachidx 



