Journal
FOLIA PARASITOLOGICA
Volume 58, Issue 3, Pages 178-186Publisher
FOLIA PARASITOLOGICA
DOI: 10.14411/fp.2011.018
Keywords
Rhinebothrium corbatai; Rhinebothrium mistyae; Santa Fe; Parana River basin; Argentina
Categories
Funding
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT, Argentina) [825]
- Universidad de Buenos Aires (Argentina) [UBACyT X453, UBACyT 20020090200511]
- CONICET-PIP [11420100100237]
- NSF PBI (USA) [0818696, 0818823]
- Direct For Biological Sciences
- Division Of Environmental Biology [818823] Funding Source: National Science Foundation
- Division Of Environmental Biology
- Direct For Biological Sciences [818696] Funding Source: National Science Foundation
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Two new species of Rhinebothrium (Cestoda, Rhinebothriidea) from potamotrygonid stingrays in the Neotropical region are herein described, which raises the total number of Rhinebothrium species known from Neotropical freshwaters to five. Rhinebothrium corbatai sp. n., and Rhinebothrium mistyae sp. n. were both collected from Potamotrygon motor (Muller et Henle), captured in four tributaries of the Parana River in Santa Fe Province, Argentina. The new species can be distinguished from their congeners, and from each other, by a combination of various features, including worm size (length and number of proglottids), number of loculi per bothridium, microthrix pattern, size of the cirrus sac, and the extent of the vas deferens. The discovery of these new species from P. motoro supports the pattern of high host specificity in this cestode genus, and reinforces the notion that some of the previous records of the enigmatic R. paratrygoni may correspond to new species of Rhinebothrium yet to be described.
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