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The genus oxyascaris nematoda subuluroidea

The genus oxyascaris nematoda subuluroidea

Revista Brasileira de Biologia 40(3): 629-634

O. oxyascaris Travassos, 1920 (parasitic in reptiles) and O. necopinus Freitas, 1958 (parasitic in amphibians) are analyzed systematically as to the significance of the distinctive characteristic, i.e., the length of the esophagus. An examination of material collected from amphibians, which should represent O. necopinus, showed variations making identification impossible. The 2 spp. were compared applying the test to contrast between median values for O. oxyascaris and O. necopinus with reference to esophagus length/body length, yielding values of 1.11 for the comparison of males and 0.05 for females. Neither value is significant at the 5% level. O. necopinus is considered as a synonym of O. oxyascaris, and Leptodactylus mystaceus, Physalaemus signiferus and P. soaresi are recorded as its new host.

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Accession: 006683389

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