swamp hare

from WordNet (r) 3.0 (2006)

swamp hare
    n 1: a wood rabbit of southeastern United States swamps and
         lowlands [syn: {swamp rabbit}, {canecutter}, {swamp hare},
         {Sylvilagus aquaticus}]

from The Collaborative International Dictionary of English v.0.48

Water hare \Wa"ter hare\ (Zool.)
   A small American hare or rabbit ({Lepus aquaticus}) found on
   or near the southern coasts of the United States; -- called
   also {water rabbit}, and {swamp hare}.
   [1913 Webster]