Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina
The proteocephalidean tapeworm Monticellia santafesina n. sp. is described from the siluriform catfish Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina. The new species is allocated to Monticellia La Rue, 1911 (Proteocephalidae: Monticelliinae) because o...
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todo:paper_01655752_v76_n2_p103_Arredondo2023-10-03T15:03:02Z Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina Arredondo, N.J. de Pertierra, A.A.G. animal animal disease Argentina article catfish cestode cestodiasis classification fish disease histology parasitology physiology prevalence river species difference Animals Argentina Catfishes Cestoda Cestode Infections Fish Diseases Prevalence Rivers Species Specificity Cestoda Monticellia Monticelliinae Pimelodidae Proteocephalidae Proteocephalidea Rudolphiella lobosa Siluriformes Sorubimichthys planiceps The proteocephalidean tapeworm Monticellia santafesina n. sp. is described from the siluriform catfish Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina. The new species is allocated to Monticellia La Rue, 1911 (Proteocephalidae: Monticelliinae) because of the cortical position of the testes, ovary, vitelline follicles and uterus, a globular scolex without a metascolex and uniloculate suckers. The new species differs from all other species of Monticellia (except for M. lenha Woodland, 1933) in possessing a vaginal canal opening anterior or posterior to the cirrus-sac. M. santafesina can be distinguished from M. lenha by the following characteristics: a larger body size; a weakly developed internal longitudinal musculature arranged in 15-35 slim bundles of muscle fibres; vitelline follicles not interrupted at the level of the cirrus-sac and vaginal canal, and with a few paramuscular and/or medullary follicles; the absence of large spinitriches on the anterior margin of the suckers; and the utilisation of Megalonema platanum (in the Paraná River basin) as its host, rather than Sorubimichthys planiceps (Spix & Agassiz) (in the River Amazon). Monticellia santafesina exhibits low values of prevalence (9%) and intensity of infection (1). Megalonema platanum was parasitised by two proteocephalidean cestodes, Rudolphiella cf. lobosa (Riggenbach, 1895) and the new species described in this paper. © 2010 Springer Science+Business Media B.V. Fil:Arredondo, N.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01655752_v76_n2_p103_Arredondo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
animal animal disease Argentina article catfish cestode cestodiasis classification fish disease histology parasitology physiology prevalence river species difference Animals Argentina Catfishes Cestoda Cestode Infections Fish Diseases Prevalence Rivers Species Specificity Cestoda Monticellia Monticelliinae Pimelodidae Proteocephalidae Proteocephalidea Rudolphiella lobosa Siluriformes Sorubimichthys planiceps |
| spellingShingle |
animal animal disease Argentina article catfish cestode cestodiasis classification fish disease histology parasitology physiology prevalence river species difference Animals Argentina Catfishes Cestoda Cestode Infections Fish Diseases Prevalence Rivers Species Specificity Cestoda Monticellia Monticelliinae Pimelodidae Proteocephalidae Proteocephalidea Rudolphiella lobosa Siluriformes Sorubimichthys planiceps Arredondo, N.J. de Pertierra, A.A.G. Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| topic_facet |
animal animal disease Argentina article catfish cestode cestodiasis classification fish disease histology parasitology physiology prevalence river species difference Animals Argentina Catfishes Cestoda Cestode Infections Fish Diseases Prevalence Rivers Species Specificity Cestoda Monticellia Monticelliinae Pimelodidae Proteocephalidae Proteocephalidea Rudolphiella lobosa Siluriformes Sorubimichthys planiceps |
| description |
The proteocephalidean tapeworm Monticellia santafesina n. sp. is described from the siluriform catfish Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina. The new species is allocated to Monticellia La Rue, 1911 (Proteocephalidae: Monticelliinae) because of the cortical position of the testes, ovary, vitelline follicles and uterus, a globular scolex without a metascolex and uniloculate suckers. The new species differs from all other species of Monticellia (except for M. lenha Woodland, 1933) in possessing a vaginal canal opening anterior or posterior to the cirrus-sac. M. santafesina can be distinguished from M. lenha by the following characteristics: a larger body size; a weakly developed internal longitudinal musculature arranged in 15-35 slim bundles of muscle fibres; vitelline follicles not interrupted at the level of the cirrus-sac and vaginal canal, and with a few paramuscular and/or medullary follicles; the absence of large spinitriches on the anterior margin of the suckers; and the utilisation of Megalonema platanum (in the Paraná River basin) as its host, rather than Sorubimichthys planiceps (Spix & Agassiz) (in the River Amazon). Monticellia santafesina exhibits low values of prevalence (9%) and intensity of infection (1). Megalonema platanum was parasitised by two proteocephalidean cestodes, Rudolphiella cf. lobosa (Riggenbach, 1895) and the new species described in this paper. © 2010 Springer Science+Business Media B.V. |
| format |
JOUR |
| author |
Arredondo, N.J. de Pertierra, A.A.G. |
| author_facet |
Arredondo, N.J. de Pertierra, A.A.G. |
| author_sort |
Arredondo, N.J. |
| title |
Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| title_short |
Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| title_full |
Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| title_fullStr |
Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| title_full_unstemmed |
Monticellia santafesina n. sp. (Cestoda: Proteocephalidea), a parasite of Megalonema platanum (Günther) (Siluriformes: Pimelodidae) in the Paraná River basin, Argentina |
| title_sort |
monticellia santafesina n. sp. (cestoda: proteocephalidea), a parasite of megalonema platanum (günther) (siluriformes: pimelodidae) in the paraná river basin, argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_01655752_v76_n2_p103_Arredondo |
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