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Abstract:

Two new species of Crossobothrium were found inhabiting Notorynchus cepedianus, the broadnose sevengill shark, collected from the coast of Buenos Aires Province, Argentina. Crossobothrium antonioi n. sp. is the smallest species in the genus and has at least 3 times as many testes per mature proglottid than any other congener. It can be further distinguished from other species of Crossobothrium by the possession of crenulated bothridial margins and a different microthrix pattern. Crossobothrium pequeae n. sp. is distinguished from all other species in the genus using the following combination of characters: worm size, number of testes per mature proglottid, bothridial margins, microthrix pattern, and the extension of ovary and testicular fields in cross section. Species in Crossobothrium, with the exception of C. laciniatum, seem to be restricted to hexanchid sharks, and a single species of shark can be parasitized by multiple species of Crossobothrium, as is the case with N. cepedianus, and probably Hexanchus griseus. © American Society of Parasitologists.

Registro:

Documento: Artículo
Título:New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina
Autor:Ivanov, V.A.
Filiación:Laboratorio de Helmintología, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabelln II, piso 4, C1428EHA Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Palabras clave:flatworm; new genus; new species; parasite; shark; species occurrence; Argentina; article; cestode; Crossobothrium; new species; nonhuman; Notorynchus cepedianus; parasite identification; scanning electron microscopy; shark; species difference; species identification; taxonomic identification; anatomy and histology; animal; cestode; cestodiasis; classification; fish disease; intestine; intestine infection; parasitology; shark; ultrastructure; veterinary; Argentina; Buenos Aires [Argentina]; Candidatus Microthrix; Cestoda; Chondrichthyes; Crossobothrium; Hexanchidae; Hexanchus griseus; Notorynchus cepedianus; Tetraphyllidea; Animals; Argentina; Cestoda; Cestode Infections; Fish Diseases; Intestinal Diseases, Parasitic; Intestines; Microscopy, Electron, Scanning; Sharks
Año:2009
Volumen:95
Número:6
Página de inicio:1479
Página de fin:1488
DOI: http://dx.doi.org/10.1645/GE-2096.1
Título revista:Journal of Parasitology
Título revista abreviado:J. Parasitol.
ISSN:00223395
CODEN:JOPAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223395_v95_n6_p1479_Ivanov

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Citas:

---------- APA ----------
(2009) . New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina. Journal of Parasitology, 95(6), 1479-1488.
http://dx.doi.org/10.1645/GE-2096.1
---------- CHICAGO ----------
Ivanov, V.A. "New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina" . Journal of Parasitology 95, no. 6 (2009) : 1479-1488.
http://dx.doi.org/10.1645/GE-2096.1
---------- MLA ----------
Ivanov, V.A. "New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina" . Journal of Parasitology, vol. 95, no. 6, 2009, pp. 1479-1488.
http://dx.doi.org/10.1645/GE-2096.1
---------- VANCOUVER ----------
Ivanov, V.A. New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina. J. Parasitol. 2009;95(6):1479-1488.
http://dx.doi.org/10.1645/GE-2096.1