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1 February 2005 A NEW GENUS AND SPECIES OF CYCLOCOELID FROM THE BLACK-NECKED STILT, HIMANTOPUS MEXICANUS (RECURVIROSTRIDAE), FROM GALVESTON, TEXAS
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Abstract

Two black-necked stilts, Himantopus mexicanus (Recurvirostridae), from the Texas Gulf coast, died while in the care of bird rehabilitators and were found to be infected with Neoallopyge americanensis n. gen., n. sp. Neoallopyge n. gen. (Digenea: Cyclocoelidae) differs from Allopyge in having the testes situated some distance from the posterior extremity, 2 uterine loops on each side extensively invading the space posterior to the testes, no intertesticular uterine loops, and it is a parasite of Recurvirostridae in the western hemisphere rather than Gruidae from the Old World. The new species is unlike Allopyge antigones, Allopyge ominosus, and Allopyge undulatus in having the genital pore located anterior to the cecal bifurcation rather than posterior to it, and it is unlike A. ominosus and A. undulatus, where the uterus is entirely intercecal in having the uterine loops extending laterally, reaching the body wall on both sides. The new species further differs from A. antigones, A. ominosus, and Allopyge skrjabini in having larger eggs (148 [140–155] μm by 55 [45–63] μm compared with 95 by 55 μm, 65–80 by 40–46 μm, 119– 124 by 55–66 μm, respectively), and it differs from Allopyge adolphi and A. undulatus in having narrower eggs (154 by 75 μm, 144 by 86 μm, respectively).

Norman O. Dronen and Charles K. Blend "A NEW GENUS AND SPECIES OF CYCLOCOELID FROM THE BLACK-NECKED STILT, HIMANTOPUS MEXICANUS (RECURVIROSTRIDAE), FROM GALVESTON, TEXAS," Journal of Parasitology 91(1), 108-110, (1 February 2005). https://doi.org/10.1645/GE-3690
Received: 2 February 2004; Accepted: 1 May 2004; Published: 1 February 2005
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