Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians

Acanthocephalus lutzi (Hamann, 1891) is proposed to be transferred to the genus Pseudoacanthocephalus Petrochenko, 1956 based on the type material from Rhinella marina (L.) from Brazil and recently collected material from R. arenarum (Hensel) from Argentina. Pseudoacanthocephalus is characterised by...

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Autor principal:	Arredondo, Nathalia J.
Publicado:	2009
Materias:	Acanthocephala Acanthocephalus lutzi Amphibians Argentina Echinorhynchidae Pseudoacanthocephalus Rhinella Acanthocephalus Amphibia animal article classification female male parasitology ultrastructure Animals Female Male Icterica
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v56_n4_p295_Arredondo http://hdl.handle.net/20.500.12110/paper_00155683_v56_n4_p295_Arredondo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00155683_v56_n4_p295_Arredondo
record_format	dspace
spelling	paper:paper_00155683_v56_n4_p295_Arredondo2023-06-08T14:38:05Z Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians Arredondo, Nathalia J. Acanthocephala Acanthocephalus lutzi Amphibians Argentina Echinorhynchidae Pseudoacanthocephalus Rhinella Acanthocephalus Amphibia animal article classification female male parasitology ultrastructure Acanthocephala Amphibians Animals Female Male Acanthocephalus Acanthocephalus lutzi Amphibia Echinorhynchidae Icterica Pseudoacanthocephalus Acanthocephalus lutzi (Hamann, 1891) is proposed to be transferred to the genus Pseudoacanthocephalus Petrochenko, 1956 based on the type material from Rhinella marina (L.) from Brazil and recently collected material from R. arenarum (Hensel) from Argentina. Pseudoacanthocephalus is characterised by the following features: A cylindrical trunk without spines, a cylindrical proboscis, testes in tandem, a compact cluster of cement glands, a nearly terminal male genital pore, a ventral and sub-terminal female genital pore, and egg without polar prolongations, containing a holoechinate acanthor. Pseudoacanthocephalus lutzi comb. n. has a proboscis armature of 14-18 longitudinal rows of 5-8 hooks each, with all roots formed by a posteriorly directed longitudinal spatulate sheet having a central rib, and an inconspicuous sheet directed anteriorly; a variable number (4, 5 or 6) of cement glands; a cerebral ganglion located near the base of the proboscis receptacle; digitiform to claviform lemnisci, as long as, or slightly shorter or slightly longer than the proboscis receptacle; a sigmoid-shaped posterior end in males; an egg with a conspicuous fibrillar coat; and one of the larval hooks more robust and different in shape than the others. Additionally, the type material of Acanthocephalus saopaulensis Smales, 2007 from Rhinella icterica (Spix) from Brazil and a paratype of A. caspanensis Fernández et Ibarra Vidal, 1992 from R. spinulosa (Wiegmann) from Chile were studied. Acanthocephalus saopaulensis is considered conspecific with P. lutzi and A. caspanensis is transferred to Pseudoacanthocephalus because it possesses all the characters of the genus mentioned above. The use of characters such as egg morphology and host ecology for distinguishing Acanthocephalus from Pseudoacanthocephalus is also discussed. © Institute of Parasitology, Biology Centre ASCR. Fil:Arredondo, N.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v56_n4_p295_Arredondo http://hdl.handle.net/20.500.12110/paper_00155683_v56_n4_p295_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	Acanthocephala Acanthocephalus lutzi Amphibians Argentina Echinorhynchidae Pseudoacanthocephalus Rhinella Acanthocephalus Amphibia animal article classification female male parasitology ultrastructure Acanthocephala Amphibians Animals Female Male Acanthocephalus Acanthocephalus lutzi Amphibia Echinorhynchidae Icterica Pseudoacanthocephalus
spellingShingle	Acanthocephala Acanthocephalus lutzi Amphibians Argentina Echinorhynchidae Pseudoacanthocephalus Rhinella Acanthocephalus Amphibia animal article classification female male parasitology ultrastructure Acanthocephala Amphibians Animals Female Male Acanthocephalus Acanthocephalus lutzi Amphibia Echinorhynchidae Icterica Pseudoacanthocephalus Arredondo, Nathalia J. Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
topic_facet	Acanthocephala Acanthocephalus lutzi Amphibians Argentina Echinorhynchidae Pseudoacanthocephalus Rhinella Acanthocephalus Amphibia animal article classification female male parasitology ultrastructure Acanthocephala Amphibians Animals Female Male Acanthocephalus Acanthocephalus lutzi Amphibia Echinorhynchidae Icterica Pseudoacanthocephalus
description	Acanthocephalus lutzi (Hamann, 1891) is proposed to be transferred to the genus Pseudoacanthocephalus Petrochenko, 1956 based on the type material from Rhinella marina (L.) from Brazil and recently collected material from R. arenarum (Hensel) from Argentina. Pseudoacanthocephalus is characterised by the following features: A cylindrical trunk without spines, a cylindrical proboscis, testes in tandem, a compact cluster of cement glands, a nearly terminal male genital pore, a ventral and sub-terminal female genital pore, and egg without polar prolongations, containing a holoechinate acanthor. Pseudoacanthocephalus lutzi comb. n. has a proboscis armature of 14-18 longitudinal rows of 5-8 hooks each, with all roots formed by a posteriorly directed longitudinal spatulate sheet having a central rib, and an inconspicuous sheet directed anteriorly; a variable number (4, 5 or 6) of cement glands; a cerebral ganglion located near the base of the proboscis receptacle; digitiform to claviform lemnisci, as long as, or slightly shorter or slightly longer than the proboscis receptacle; a sigmoid-shaped posterior end in males; an egg with a conspicuous fibrillar coat; and one of the larval hooks more robust and different in shape than the others. Additionally, the type material of Acanthocephalus saopaulensis Smales, 2007 from Rhinella icterica (Spix) from Brazil and a paratype of A. caspanensis Fernández et Ibarra Vidal, 1992 from R. spinulosa (Wiegmann) from Chile were studied. Acanthocephalus saopaulensis is considered conspecific with P. lutzi and A. caspanensis is transferred to Pseudoacanthocephalus because it possesses all the characters of the genus mentioned above. The use of characters such as egg morphology and host ecology for distinguishing Acanthocephalus from Pseudoacanthocephalus is also discussed. © Institute of Parasitology, Biology Centre ASCR.
author	Arredondo, Nathalia J.
author_facet	Arredondo, Nathalia J.
author_sort	Arredondo, Nathalia J.
title	Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
title_short	Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
title_full	Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
title_fullStr	Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
title_full_unstemmed	Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians
title_sort	pseudoacanthocephalus lutzi (hamann, 1891) comb. n. (acanthocephala: echinorhynchidae) for acanthocephalus lutzi (hamann, 1891), parasite of south american amphibians
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v56_n4_p295_Arredondo http://hdl.handle.net/20.500.12110/paper_00155683_v56_n4_p295_Arredondo
work_keys_str_mv	AT arredondonathaliaj pseudoacanthocephaluslutzihamann1891combnacanthocephalaechinorhynchidaeforacanthocephaluslutzihamann1891parasiteofsouthamericanamphibians
_version_	1768544669724049408

Pseudoacanthocephalus lutzi (Hamann, 1891) comb. n. (Acanthocephala: Echinorhynchidae) for Acanthocephalus lutzi (Hamann, 1891), parasite of South American amphibians

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