Oxyuricassis ekstromi n. sp. (Oxyurida: Pharyngodonidae) from Lasiancistrus saetiger (Siluriform: Loricariidae) from the Eastern Amazon
| Autor: | F. T. V. Melo, Y. Wilkens, A.R.O. Rodrigues, Jeannie Nascimento dos Santos, Scott Lyell Gardner |
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| Rok vydání: | 2020 |
| Předmět: |
Male
animal structures animal diseases Loricariidae Zoology Alae Fish Diseases Rivers stomatognathic system Oxyuroidea Genus Animals Intestinal Diseases Parasitic Catfishes Ecology Evolution Behavior and Systematics Oxyuriasis biology Amazon rainforest food and beverages biology.organism_classification Intestines Spine (zoology) Major duodenal papilla embryonic structures Microscopy Electron Scanning Female Parasitology Brazil Lasiancistrus saetiger Oxyurida |
| Zdroj: | Journal of Parasitology. 106 |
| ISSN: | 0022-3395 |
| Popis: | Oxyuricassis ekstromi n. sp. is the third species of the genus described from the intestine of Lasiancistrus saetiger Armbruster in Brazil. This species can be easily differentiated from its congeners by the presence of a tooth-like sclerotized piece that occupies half of the stoma and absence of spine projections on the tail of both males and females. Also, males of the new species lack caudal alae present in Oxyuricassis coronatus and Oxyuricassis hexaspinatus. Additionally, we observed a different number and pattern of the distribution of cloacal papilla; males of O. coronatus and O. hexaspinatus have 1 pair of pre-cloacal and 2 pairs of post-cloacal papillae; while the new species has 1 pre-cloacal and 3 post-cloacal pairs of papillae. |
| Databáze: | OpenAIRE |
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