119 



Fabridan Species. 



77. Intequalis 



78. Minutus 



79. Pygmaeus 



80. Reticiilatus 



81. Crassicornis 



82. Flavipes 



83. Pictus 



84. Nigrita 



85. Pusillus 



86. Parvulus 



GYRINUS of LiNNEus and Fabricius. 

 GYRINID^, Leach. 



1. Natator 



2. Bicolor 



3. Australis 



4. Americauus 



5. Micans 



6. Premorsus 



7. Hastatus 



8. Spinosus 



9. Striatus 



10. Minutus 



11. Nitidulus 



12. Strigosus 



13. Rufipes 



14. Villosus 



England 

 Switzerland 

 New Holland 

 N. America 

 Guinea 

 Sierra Leone 

 American Isles 

 Coromandel 

 Barbary 

 England 

 East Indies 

 New Holland 

 New Holland 

 Germany 



Gyrinus oj" Authors. 



Enhydrus, Laporte. 



Euhydrus ? 

 Dineutes, MacLeay. 

 Dineutes ? 



Dineutes, MacLeay. 

 Gyrinus of Authors. 



Gyrinus? 

 Gyrinus, Linneus. 

 Potamobius, Leach. 



1. Aquaticus 



2. Nubilus 



3. Elongatus 



4. Humeralis 



5. Flavipes 



6. Crenatus 



7. Pygmaeus 



8. Minimus 



ELOPHORUS, Fabricius. 

 HELOPHORID.^, Leach. 



England 



Germany 



England 



Germany 



Switzerland 



England 



England 



England 



Hclophorus of A uthors. 



Hydrochus, Gennar. 

 Helophorus ? 



Helophorus, of Authors. 

 Hydrochus, Gennar. 

 Oclithebius, Leach. 

 Hydraena, Kuyellu 



'lun. 



