Folia Parasitologica 63:015 (2016) | DOI: 10.14411/fp.2016.015

Two new species of Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) from anuran amphibians in Pará, Brazil

Yuriy Kuzmin1, Francisco Tiago de Vasconcelos Melo2, Heriberto Figueira da Silva Filho3, Jeannie Nascimento dos Santos2
1 Department of Parasitology, I. I. Schmalhausen Institute of Zoology, Kyiv, Ukraine;
2 Laboratório de Biologia Celular e Helmintologia Profª Drª Reinalda Marisa Lanfredi, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil;
3 Laboratorio de Zoologia e Ecologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil

Two new lung-dwelling nematode species of the genus Rhabdias Stiles et Hassall, 1905 were discovered in Caxiuanã National Forest, Pará state, Brazil. Rhabdias galactonoti sp. n. was found in a dendrobatid frog Adelphobates galactonotus (Steindachner). The species is characterised by the regularly folded inner surface of the anterior part of the buccal capsule seen in apical view, flask-shaped oesophageal bulb and narrow, elongated tail. Rhabdias stenocephala sp. n. from two species of leptodactylid frogs, Leptodactylus pentadactylus (Laurenti) (type host) and L. paraensis (Heyer), is characterised by a narrow anterior end that is separated from the remaining body by a constriction. Both species possess six small but distinct lips, a cuticle that is inflated along the whole body, a doliiform buccal capsule separated into a longer anterior and a shallow, ring-shaped posterior part, lateral pores in the body cuticle and zones of spermatogenesis in the syngonia. Rhabdias galactonoti sp. n. is the first species of the genus found in Dendrobatidae; R. stenocephala sp. n. is the second species described from Leptodactylidae in eastern Amazonia.

Keywords: taxonomy, Adelphobates, Leptodactylus, Rhabdiasidae, Anura, eastern Amazonia, South America

Received: January 27, 2016; Accepted: March 20, 2016; Published online: May 3, 2016  Show citation

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Kuzmin, Y., de Vasconcelos Melo, F.T., da Silva Filho, H.F., & dos Santos, J.N. (2016). Two new species of Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) from anuran amphibians in Pará, Brazil. Folia Parasitologica, 63, Article 2016.015. https://doi.org/10.14411/fp.2016.015
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