Marine Animal Forms in Fresh Water. 53 



f. Indicates that the family only occurs in fresh water in this 



zone. 



The parentheses indicate rare, or rather occasional occurrence. 

 The families printed in italics arc exclusively inhabitants of fresh 

 uatcr. 



IS 

 o 1 



n. 



III. 



IV. 



V. 



Scandina- 1 Central 

 via. Europe. 



Southern 

 Europe. 



Torrid 

 zone. 



Dipnoi 



Pisces. 



. . Sirenoidei. . . , 



f I'ercoidci .... 



Catajjhracti , 



Sciffinoidei . 



Ac ANTHOPTEUi \ Labyrinthici . 



Atliciinoidci . 



Notacantliini-'. 



Scomberoidei . 



IJlennioidei 



Gobioidei 



[ Gadhii 



1 Plcuronectidi'. 



Pharvngognatiii ./^■/"•'"(I''/^* •••• 

 [ acomberesoces 

 'Siluroides .... 



An'acanthini 



Loricaria 



Cypriiioidei 



Characini 



Cyprinodontes .. 



Mormyri 



Esoces 



Physostomi .{ Galaxix 



Sahnones 



Clujieoidei 



Ilyodontes, Val.. 



Elopes, Val. 



Heleropygii 



Murffiiioidci 



Gymnoiini 



__ Synibraiichii .. 



Plectognathi .^Gyninodontes .. 



LoruoBRANcuii Loi)bobranchii.. 



f Polypterini 



I Lepidosteini 



Ganoidei ./ AmicE 



Acipeiiserini .. 

 ySpatularice 



Plagiostomi .[,^/l"^" 



\Kajic 



Cyclostomi Petronivzones .. 



(,«) 



T 

 iS. Am. t 



m ? 







{m) 



(N. Am. 

 Austr.) 



t 

 (N. Am.) 







t 





 

 



t 



Austr. t 



N.Am.t 







N.Am.t 



(m) 



(N. Am.) 







t 



N. Am. t 





 



N.Am.t 

 N.Am.t 



N.Am.t 



mi 



0? 



m ? 



t 



G 



61) 



t 

 t 

 t 

 t 

 t 



t 



\m. t 



