水龜蟲

水龜蟲（學名：），又名牙蟲，是水龜蟲科下的一屬水生甲蟲，終生生活在淡水中，成蟲為雜食性，幼蟲則為肉食性。其前翅演化成保護後翅的硬殼，可和部毛髮一起儲存空氣以作為在水中時的氣囊。

物種 
 Hydrophilus aculeatus (Solier, 1834)
  Motschulsky, 1853
 Hydrophilus albipes Castelnau, 1840
  (Eschscholtz, 1822)
 Hydrophilus atricapillus Duftschmid, 1805
 Hydrophilus bilineatus
 Hydrophilus brevispina Fairmaire, 1879
   Redtenbacher, 1844
 Hydrophilus ensifer Brullé, 1837
 Hydrophilus foveolatus (Régimbart, 1901)
 Hydrophilus guarani (Bachmann, 1966)
 Hydrophilus hastatus (Herbst, 1779)
 Hydrophilus indicus (Bedel, 1891)
 Hydrophilus infrequens Watts, 1988
 Hydrophilus latipalpus Castelnau, 1840
 Hydrophilus macronyx (Régimbart, 1901)
  Gemminger and Harold 1868
  Brullé, 1838
 Hydrophilus pedipalpus (Bedel, 1891)
  (Linnaeus, 1758) – great silver water beetle
  Chevrolat, 1863
 Hydrophilus pistaceus Laporte de Castelnau, 1840
 Hydrophilus rufus Scopoli, 1763
 Hydrophilus smaragdinus Brullé, 1837
  Say, 1823 – giant water scavenger beetle
 Hydrophilus tricolor Herbst, 1784
 Hydrophilus wattsi Hansen, 1999

參考文獻

外部連結 
Hydrophilus in the 

水龟甲科
S
S