Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium

Guidus n. gen. (Cestoda, Tetraphyllidea) is proposed for 3 cestode species from skates (Bathyraja spp.: Rajiformes, Rajidae). Members of Guidus differ from those of all other phyllobothriid genera in possessing 4 sessile and conspicuously muscular, saclike bothridia; a bothridial aperture toward ant...

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Autor principal:	Ivanov, V.A.
Formato:	JOUR
Materias:	definitive host fish flatworm morphology new species animal anatomy article Bathyraja cestode Guidus Marsupiobothrium Marsupiobothrium alopias Marsupiobothrium awii nonhuman species identification Animals Argentina Cestoda Cestode Infections Fish Diseases Intestines Microscopy, Electron, Scanning Skates (Fish) Alopias Phyllobothriidae Polaribacter Rajidae Rajiformes Tetraphyllidea
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00223395_v92_n4_p832_Ivanov
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00223395_v92_n4_p832_Ivanov
record_format	dspace
spelling	todo:paper_00223395_v92_n4_p832_Ivanov2023-10-03T14:31:49Z Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium Ivanov, V.A. definitive host fish flatworm morphology new species animal anatomy article Bathyraja cestode Guidus Marsupiobothrium Marsupiobothrium alopias Marsupiobothrium awii new species nonhuman species identification Animals Argentina Cestoda Cestode Infections Fish Diseases Intestines Microscopy, Electron, Scanning Skates (Fish) Alopias Bathyraja Cestoda Marsupiobothrium Marsupiobothrium awii Phyllobothriidae Polaribacter Rajidae Rajiformes Tetraphyllidea Guidus n. gen. (Cestoda, Tetraphyllidea) is proposed for 3 cestode species from skates (Bathyraja spp.: Rajiformes, Rajidae). Members of Guidus differ from those of all other phyllobothriid genera in possessing 4 sessile and conspicuously muscular, saclike bothridia; a bothridial aperture toward anterior end of scolex, and perpendicular to scolex axis; aperture surrounded by a continuous sphincter of circular muscles, and 1 marginal accessory sucker. A new species, Guidus argentinense n. sp., is described, the diagnosis of Marsupiobothrium antarcticum is emended, and it is transferred to the new genus along with Marsupiobothrium awii. These species can be easily distinguished from G. argentinense by the presence of lappets in the bothridial margin. In addition, the diagnosis of Marsupiobothrium is emended based on the redescription of the type species, Marsupiobothrium alopias. © American Society of Parasitologists 2006. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223395_v92_n4_p832_Ivanov
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	definitive host fish flatworm morphology new species animal anatomy article Bathyraja cestode Guidus Marsupiobothrium Marsupiobothrium alopias Marsupiobothrium awii new species nonhuman species identification Animals Argentina Cestoda Cestode Infections Fish Diseases Intestines Microscopy, Electron, Scanning Skates (Fish) Alopias Bathyraja Cestoda Marsupiobothrium Marsupiobothrium awii Phyllobothriidae Polaribacter Rajidae Rajiformes Tetraphyllidea
spellingShingle	definitive host fish flatworm morphology new species animal anatomy article Bathyraja cestode Guidus Marsupiobothrium Marsupiobothrium alopias Marsupiobothrium awii new species nonhuman species identification Animals Argentina Cestoda Cestode Infections Fish Diseases Intestines Microscopy, Electron, Scanning Skates (Fish) Alopias Bathyraja Cestoda Marsupiobothrium Marsupiobothrium awii Phyllobothriidae Polaribacter Rajidae Rajiformes Tetraphyllidea Ivanov, V.A. Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
topic_facet	definitive host fish flatworm morphology new species animal anatomy article Bathyraja cestode Guidus Marsupiobothrium Marsupiobothrium alopias Marsupiobothrium awii new species nonhuman species identification Animals Argentina Cestoda Cestode Infections Fish Diseases Intestines Microscopy, Electron, Scanning Skates (Fish) Alopias Bathyraja Cestoda Marsupiobothrium Marsupiobothrium awii Phyllobothriidae Polaribacter Rajidae Rajiformes Tetraphyllidea
description	Guidus n. gen. (Cestoda, Tetraphyllidea) is proposed for 3 cestode species from skates (Bathyraja spp.: Rajiformes, Rajidae). Members of Guidus differ from those of all other phyllobothriid genera in possessing 4 sessile and conspicuously muscular, saclike bothridia; a bothridial aperture toward anterior end of scolex, and perpendicular to scolex axis; aperture surrounded by a continuous sphincter of circular muscles, and 1 marginal accessory sucker. A new species, Guidus argentinense n. sp., is described, the diagnosis of Marsupiobothrium antarcticum is emended, and it is transferred to the new genus along with Marsupiobothrium awii. These species can be easily distinguished from G. argentinense by the presence of lappets in the bothridial margin. In addition, the diagnosis of Marsupiobothrium is emended based on the redescription of the type species, Marsupiobothrium alopias. © American Society of Parasitologists 2006.
format	JOUR
author	Ivanov, V.A.
author_facet	Ivanov, V.A.
author_sort	Ivanov, V.A.
title	Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
title_short	Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
title_full	Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
title_fullStr	Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
title_full_unstemmed	Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium
title_sort	guidus n. gen. (cestoda: tetraphyllidea), with description of a new species and emendation of the generic diagnosis of marsupiobothrium
url	http://hdl.handle.net/20.500.12110/paper_00223395_v92_n4_p832_Ivanov
work_keys_str_mv	AT ivanovva guidusngencestodatetraphyllideawithdescriptionofanewspeciesandemendationofthegenericdiagnosisofmarsupiobothrium
_version_	1807317259798970368

Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium

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