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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2008
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| Accès en ligne: | https://www.redalyc.org/articulo.oa?id=42519190004 |
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Table des matières:
- Two new species of Creptotrema (Digenea: Allocreadiidae) from South America Stephen S. Curran Biología sp Ecuador Paraguay Creptotrema lamothei n Creptotrema sucumbiosa n Two new digenean species belonging in Creptotrema Travassos, Artigas and Pereira, 1928 are described from specimens stored in the invertebrate collection at the Museum of Natural History, Geneva, Switzerland. Creptotrema lamothei n. sp. is described from Ageneiosus brevifilis Valenciennes in Cuvier and Valenciennes, 1840 (Siluriformes: Ageneiosidae), Auchenipterus nuchalis (Spix and Agassiz, 1829) (Siluriformes: Auchenipteridae), and Bryconops melanurus (Bloch, 1794) (Characiformes: Characidae) in the Paraguay River, Paraguay. Creptotrema sucumbiosa n. sp. is described from Tetragonopterus argenteus Cuvier, 1816 (Characiformes: Characidae) in Río Aquarico, Ecuador. Creptotrema lamothei differs from its congeners by having testes with irregular rather than entire outlines. Creptotrema sucumbiosa differs from its congeners by having a bilobed rather than entire ovary. Both C. lamothei and C. sucumbiosa differ from their other congeners by having relatively longer posttesticular spaces in their bodies, representing 25-30% and 24-28% of body length respectively, compared with approximately 6-19% in other species. 2008 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42519190004 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Vol.79