Their name comes from their singular fur which is unlike any other bat. They weigh about 8 12 grams and have short rounded furless ears.
Canadian Wildlife Federation Bats 101 http://cwf-fcf.org/en/explore/bats/bats-101.html
Bats Alyson F Brokaw https://afbrokaw.wordpress.com/tag/bats/
Wildlife Field Guide For New Jerseys Endangered And Threatened http://www.conservewildlifenj.org/species/fieldguide/view/Lasionycteris%20noctivagans/