A new species of Falcaustra Lane, 1915 (Nematoda: Kathlaniidae) from the Titicaca water frog Telmatobius culeus (Garman) (Anura: Telmatobiidae) in Peru.
Sergio Santillán, David Lopez, Aarón Mondragón-Martínez, Rosa Martínez-Rojas, Celso L Cruces, Jhon D Chero
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引用次数: 0
Abstract
A new kathlaniid nematode, Falcaustra peruensis n. sp., was described using light and scanning electron microscopy, based on specimens collected from the intestine of the Titicaca water frog, Telmatobius culeus (Garman) (Anura: Telmatobiidae) in Peru. Falcaustra peruensis n. sp. belongs to the Falcaustra group that is characterized by the presence of a pseudosucker. The new species can be easily differentiated from other congeneric species, with the exception of four species, by its papillae pattern. This pattern includes 6 precloacal papillae, 4 adcloacal papillae, 12 postcloacal papillae, plus 1 median papilla. The new species shares similarities with Falcaustra peruensis n. sp. by having the same papillae pattern (6-4-12 + 1) and a pseudosucker, but can be differentiated from F. sanjuanensis by the morphology of the gubernaculum (triangular with a pair of proximal and distal processes in the new species vs triangular without processes in F. sanjuanensis), the proportion of gubernaculum length relative to total body length (1.2-1.24% in the new species vs 1.56-1.71% in F. sanjuanensis), the morphology of the deirids (button-shaped surrounded by a horseshoe-shaped border in the new species vs elongated surrounded by a circular border in F. sanjuanensis) and body size (males 6.14-7.62 mm and females 4.1-6.8 mm in the new species vs males 11.2-13.5 mm and females 10.1-15.5 mm in F. sanjuanensis). Falcaustra peruensis n. sp. represents the fourth nominal species of the genus in Peru and the fourteenth species described in the Neotropical region.
期刊介绍:
Systematic Parasitology publishes papers on the systematics, taxonomy and nomenclature of the following groups: Nematoda (including plant-parasitic), Monogenea, Digenea, Cestoda, Acanthocephala, Aspidogastrea, Cestodaria, Arthropoda (parasitic copepods, hymenopterans, mites, ticks, etc.), Protozoa (parasitic groups), and parasitic genera in other groups, such as Mollusca, Turbelleria, etc. Systematic Parasitology publishes fully illustrated research papers, brief communications, and fully illustrated major revisions. In order to maintain high standards, all contributors describing new taxa are asked to state clearly where the holotype is deposited and to make paratypes available for examination by the referees. It is recognized that, in some cases, this may cause problems for the authors, but it is hoped that by adhering to this rule authors may be protected against rapid synonymy of their taxa, and the types will be preserved for posterity.