DAS GENUS ICHTHYOT.ENIA. 247 



COREGONUS MARvENA. 



1. cyclops Linstow. 

 Thymallus vulgaris. 

 1. longicollis Rud. 



CYPRINID^] 



Leuciscus mus. 



/. idus Viborg. 

 Alburnus lucidus. 



/. torulosa Batsch. 

 Alburnus bipunctatus. 



1. torulosa Batsch. 

 Cyprinus orfus. 



I. torulosa Batsch. 

 Squalius leuciscus. 



1. torulosa Batsch. 

 Idus melanotus. 



I. torulosa Batsch. 

 Abramis brama. 



I. torulosa Batsch. 



ASPIUS RAPAX. 



I. torulosa Batsch. 



COBITIS BARBATULA. 



I. sagitta Grimm. 



PERCID^E 



ClCHLA MONOCULUS. 



1. macrophalla Dies. 

 Belone acus. 



I. belones Millier. 

 Perça fluviatilis. 



I. ocellata Rud. 



MlCROPTERUS NIGRICANS. 

 I. micropteri Leidy. 



