Bruce Rauner, Governor

DNR Links Skip to Content Skip to State Links

 IDNR Home
 Agency Offices
 Disabled Outdoors
 Freedom of Information Act
 Get Involved
 Grant Info
 Great Lakes Restoration
 License / Permit / Register
 Kids & Education
 Law Enforcement
 Mandatory Safety Programs
 Lodges / Leasing
 More Links
 Outdoor Recreation
 Parks & Recreation
 Press Releases
 State Museums
 World Shooting & Recreational Complex
 DNR A to Z


  Family Poeciliidae  

Family Poeciliidae--Livebearer Family

The livebearers earned this name because they have internal fertilization, and the female gives birth to live young. Males have a special development on their anal fin to help them transfer sperm to the female. General characteristics include an upturned mouth, the top of the head flattened, no lateral line and one dorsal fin.

western mosquitofish--Gambusia affinis

Return to Illinois Fishes Families/Species

Return to Home Page

Kids & Education

 New This Month
 Online Order Form
 Student Pages

Copyrightę 2015 Department of Natural Resources
Accessibility    Contact    FAQs    Podcasts    Privacy    Social Networking