MONTICELLIA OPHISTERNI N. SP. (CESTODA: MONTICELLIIDAE) FROM THE SWAMP-EEL OPHISTERNON AENIGMATICUM (SYNBRANCHIFORMES) FROM MEXICO

Monticellia ophisterni n. sp. is described from the swamp-eel Ophisternon aenigmaticum Rosen and Greenwood (Synbranchiformes: Synbranchidae) from Lake Catemaco, Veracruz, Mexico. The new species is placed into Monticellia because of the cortical position of the testes, ovary, and uterus. It differs...

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Bibliographic Details
Published in:The Journal of parasitology 2001-12, Vol.87 (6), p.1328-1333
Main Authors: Scholz, Tomáš, de Chambrier, Alain, Salgado-Maldonado, Guillermo
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Cestoda - anatomy & histology
Cestoda - classification
Cestode Infections - veterinary
Eggs
Fish
Fish Diseases - parasitology
Fishing
Follicles
Fresh Water
Freshwater fishes
FUNCTIONAL MORPHOLOGY
Fundamental and applied biological sciences. Psychology
Genitalia
Invertebrates
Mexico
Nemathelminthia. Plathelmintha
New species
Ovaries
Parasites
Parasitology
Reptiles & amphibians
Scanning electron microscopy
Smegmamorpha - parasitology
Sperm
Sphincter
Systematics. Geographical distribution
Tapeworms
Testes
Urogenital system
Uterus
Vagina
Worms
Zoology
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Description
Summary:Monticellia ophisterni n. sp. is described from the swamp-eel Ophisternon aenigmaticum Rosen and Greenwood (Synbranchiformes: Synbranchidae) from Lake Catemaco, Veracruz, Mexico. The new species is placed into Monticellia because of the cortical position of the testes, ovary, and uterus. It differs from other Monticellia species (with the exception of Monticellia magna (Rego, Santos and Silva, 1974)) in the position of longitudinal musculature that crosses the vitelline follicles, making them paramuscular. The new species can be distinguished from M. magna—which possesses a similar number of testes (107–139), paramuscular vitelline follicles, and numerous gland cells distributed between the apex of the scolex and suckers—in the position of the genital pore (8–21% vs. 19–27%), in the presence of a weak internal longitudinal musculature, in the arrangement of the testes in the median field, and in the absence of a vaginal sphincter. This is the first proteocephalidean tapeworm reported from a synbranchid fish and the first species of Monticellia found in North America.
ISSN:0022-3395
1937-2345
DOI:10.1645/0022-3395(2001)087[1328:MONSCM]2.0.CO;2