Helminths from the Round-Tailed Muskrat, \u3ci\u3eNeofiber alleni nigrescens\u3c/i\u3e Howell, with Descriptions of Two New Species

Two specimens of round-tailed muskrat, Neofiber alleni nigrescens Howell, were examined for helminth parasites. Four species, a trematode and three cestodes, were collected. Two of these, Quinqueserialis floridensis and Paranoplocephala neofibrinus, are described as new. Cittotaenia praecoquis Stiles, 1895, is recorded from this host, and larval cestodes are tentatively identified as Taenia lyncis Skinker, 1935