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Licensed Unlicensed Requires Authentication Published by De Gruyter October 15, 2017

Redescription of the nematode parasites of lizards: Strongyluris oscariTravassos, 1923 (Heterakidae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) (Pharyngodonidae) from Egypt

Felipe B. Pereira, José L. Luque and Luiz E. R. Tavares
From the journal Acta Parasitologica

Abstract

Strongyluris oscariTravassos, 1923, parasite of Topidurus torquatus (Wied-Neuwied, 1820) (Tropiduridae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) of Chalcides ocellatus (Forskal, 1775) (Scincidae) from Egypt, were redescribed based on light and scanning electron microscopy, and re-evaluation of specimens from parasitological collections. The following features were accurately observed in S. oscari for the first time: structure of lips and pharyngeal valve, presence and distribution of somatic papillae, number and arrangement of caudal papillae, presence of inner sclerotised structures supporting the ventral sucker and the ventral region in tail of males, and structure of the posterior anal lip in females. The unpaired papilla on the inferior edge of the ventral sucker in males of S. oscari is a cuticular groove instead of a true papilla. Regarding the morphology of P. mamillatus the following features were given in details for the first time: structure of the cephalic end in both male and female, location of amphids, position of phasmids in females and the accurate morphology of caudal bursa in males, including the distribution of caudal papillae and the genital cone morphology. Strongyluris oscari and P. mamillatus have no intraspecific morphological variations, but wide range on biometric features. These variations may be accounted by host/environment attributes, since they exhibit wide host and geographical spectra. The present results increased the morphological knowledge of P. mamillatus and S. oscari, strengthening their taxonomic validity.

Acknowledgements

Authors are thankful to Dr. Tomáš Scholz and the staff of the Laboratory of Electron Microscopy from the Institute of Parasitology, Biology Centre of the Czech Academy of Sciences (IPCAS) (IPCAS; RVO: 60077322), and the Czech Science Foundation (project No. P505/12/G112), for support and covering costs of SEM observations at the IPCAS. Thanks are also due to Dr. František Moravec and Blanka Škořiková from the IPCAS for loan of specimens of P. mamillatus; Dr. Marcelo Knoff and Dr. Daniela A. Lopes from the Coleção Helmintológica do Instituto Oswaldo Cruz (CHIOC) for loan of speciemens of Strongyluris spp.; Dr. Bernadete M. Sousa from the Universidade Federal de Juiz de Fora for yielding the specimens S. oscari. Felipe B. Pereira was supported by a Post-doctoral fellowship PNPD-CAPES (Programa Nacional de Pós-Doutorado-Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-CAPES, Brazil), José L. Luque (Nos. 474077/2011-0, 304254/2011-8, 402665/2012-0) and Luiz E. R. Tavares (No 311567/2013-4) were supported by a Research fellowship from CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico do Brasil).

References

Aho J.M. 1990. Helminth communities of amphibians and reptiles: Comparative approaches to understanding patterns and processes. In: (Eds G. Esch, A.O. Bush and J.M. Aho) Parasite communities: Patterns and processes. Chapman and Hall, London, 157–19510.1007/978-94-009-0837-6_7Search in Google Scholar

Alho C.J.R. 1969. Oxyurata de lagartos do Planalto Central. Sobre o gênero Strongyluris Müeller, 1894 com descrição de duas espécies novas (Nematoda, Subuluroidea). Revista Brasileira de Biologia, 29, 65–74Search in Google Scholar

Amer S.O., Bursey C.R. 2008. On the oxyurid nematode, Pharyngodon mamillatus in the skink, Novoeumeces schneideri (Lacertilia: Scincidae) from Egypt. Comparative Parasitology, 75, 333–338. 10.1654/4338.1Search in Google Scholar

Anderson R.C., Chabaud A.G., Willmott S. (Eds) 2009. Keys to the nematode parasites of vertebrates: archival volume. CAB Publishing, Wallingford, pp. 48010.1079/9781845935726.0000Search in Google Scholar

Ashour A.A., Koura E.A., El-Alfy A.M., Abdel-Aal Z. 1992. On the morphology of the oxiurid nematode Pharyngodon mamillatus (Linstow, 1897) from Chalcides ocellatus from Egypt. Journal of Egyptian Society of Parasitology, 22, 801–806Search in Google Scholar

Ávila R.W., Silva R.J. 2010. Checklist of helmiths from lizards and amphisbaenians (Reptilia, Squamata) of South America. The Journal of Venomous Animals and Toxicins including Tropical Diseases, 16, 543–573. 10.1590/S1678-91992010000400005Search in Google Scholar

Ávila R.W., Silva R.J. 2013. Helminths of lizards from the municipality of Aripuanã in the southern Amazon region of Brazil. Journal of Helminthology, 87, 12–16. 10.1017/S0022149X11000769Search in Google Scholar PubMed

Ávila R.W., Souza F.L., Silva R.J. 2010. Helminths from seven species of lizards (Reptilia: Squamata) at the Cerrado of Mato Grosso do Sul State, Brazil. Comparative Parasitology, 77, 67–71. 10.1654/4414.1Search in Google Scholar

Baylis H.A. 1923. Report on a collection of parasitic nematodes, mainly from Egypt. Parasitology, 15, 14–2310.1017/S0031182000014463Search in Google Scholar

Brooks D.R., Hoberg E.P. 2000. Triage for the biosphere. The need and rationale for taxonomic inventories and phylogenetic studies for parasites. Comparative Parasitology, 67, 1–25Search in Google Scholar

Bursey C.R., Goldberg S.R., Kraus F. 2013. A new species of Strongyluris (Nematoda: Heterakidae) from the lizard, Lophognathus temporalis (Sauria: Agamidae) from Papua New Guinea. Journal of Parasitology, 99,1024–1027. 10.1645/13-258.1Search in Google Scholar

Bursey C.R., Goldberg S.R., Telford Jr. S.R. 2003. Strongyluris panamensis n. sp. (Nematoda: Heterakidae) and other helminths from the lizard, Anolis biporcatus (Sauria: Polychrotidae), from Panama. Journal of Parasitology, 89, 118–12310.1645/0022-3395(2003)089[0118:SPNSNH]2.0.CO;2Search in Google Scholar

Chabaud A.G., Golvan Y.J. 1957. Miscellanea helminthological Maroccana XXIV. Nematodes parasites de lézards de la forêt de Nefifik. Archives du Institut Pasteur du Maroc, 5, 447–469Search in Google Scholar

Dobson A., Lafferty K.D, Kuris A.M., Hechinger R.F., Jetz W. 2008. Homage to Linnaeus: How many parasites? How many hosts? PNAS, 105, 11482–11489. 10.1073/pnas.0803232105Search in Google Scholar

Hering-Hagenbeck S.F.B.N., Boomker J. 2000. A check-list of nematode parasites of South American Serpentes (snakes) and Sauria (lizards). Onderstepoort Journal of Veterinary Research, 67, 1–13Search in Google Scholar

Inglis W.G. 1957. A review of the nematode superfamily Heterakoidea. The Annals and Magazine of Natural History, 12, 905–91210.1080/00222935708656094Search in Google Scholar

Kohn A., Pinto R.M., Fernandes B.M.M. 1973. Contribuição ao conhecimento de Strongyluris oscari Travassos, 1923 (Nematoda, Subuluroidea). Memórias do Instituto Oswaldo Cruz, 71, 219–22510.1590/S0074-02761973000200002Search in Google Scholar

Moravec F., Baruš V., Ryšavý B. 1987. On parasitic nematodes of the families Heterakidae and Pharyngodonidae from reptiles in Egypt. Folia Parasitologica, 34, 269–280Search in Google Scholar

Pereira F.B., Campião C.M., Luque J.L., Tavares L.E.R. 2017. Parapharyngodon hugoi n. sp. a new nematode (Oxyuroidea: Pharyngodonidae) of the tree frog Trachycephalus typhonius (Linnaeus) from the Brazilian Pantanal, including a key to the congeners from amphibians of the American continent. Systematic Partasitology, 94, 599–607. 10.1007/s11230-017-9725-5Search in Google Scholar PubMed

Poulin R., Leung T.L.F. 2010. Taxonomic resolution in parasite community studies: are things getting worse? Parasitology, 137, 1967–1973. 10.1017/S0031182010000910Search in Google Scholar PubMed

Rabie S.A.H., El-Din M.Z., El-Latif A., Mohamed N.I., Al-Hissin O.F.A. 2012. Redescription of nematodes Pharyngodon mamillatus and Thelandros sp. from some reptiles of Qena, Egypt. International Journal of Science Research, 3, 1368–1380Search in Google Scholar

Rodríguez-Ortíz B., García-Prieto L., Pérez-Ponce de Léon G. 2004. Checklist of helminth parasites of vertebrates in Costa Rica. Revista de Biología Tropical, 52, 313–35310.15517/rbt.v52i2.15249Search in Google Scholar PubMed

Santos J.N., Melo F.T.V., Nazaré L.C., Furtado A.P., Giese E.G. 2013. Strongyluris amazonicus n. sp. (Nematoda: Heterakidae): A parasite of Tropidurus oreadicus from the Brazilian Amazon. Acta Tropica, 128, 96–102. 10.1016/j.actatropica.2013.06.017Search in Google Scholar PubMed

Sutton C.A., Mordeglia C., Cruz F. 1998. Strongyluris oscari Travassos, 1923 (Nematoda, Heterakidae) from Tropidurus spinulosus (Squamata, Tropiduridae) from NW Argentina. Gayana Zoologia, 62, 171–175Search in Google Scholar

Travassos L. 1923. Informações sobre a fauna helmintológica de Mato Grosso. Folha Médica, 4, 58Search in Google Scholar

Uetz P., Freed P., Hošek J. (Eds.) 2016. The Reptile Database. World Wide Web electronic publication. http://www.reptile-database.org, version 12/2016Search in Google Scholar

Vicente J.J., Rodrigues H.O., Gomes D.C., Pinto R.M. 1993. Nematóides do Brasil. Parte III: Nematóides de répteis. Revista Brasileira de Zoologia, 10, 19–168. (In Portuguese)10.1590/S0101-81751993000100003Search in Google Scholar

Received: 2017-6-14
Revised: 2017-8-10
Accepted: 2017-8-21
Published Online: 2017-10-15
Published in Print: 2017-12-20

© 2017 W. Stefański Institute of Parasitology, PAS