New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina
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 proglott...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00223395_v95_n6_p1479_Ivanov |
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todo:paper_00223395_v95_n6_p1479_Ivanov2023-10-03T14:31:51Z New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina Ivanov, V.A. 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 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223395_v95_n6_p1479_Ivanov |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Ivanov, V.A. New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| topic_facet |
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 |
| description |
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. |
| format |
JOUR |
| author |
Ivanov, V.A. |
| author_facet |
Ivanov, V.A. |
| author_sort |
Ivanov, V.A. |
| title |
New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| title_short |
New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| title_full |
New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| title_fullStr |
New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| title_full_unstemmed |
New species of Crossobothrium (Cestoda: Tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in Argentina |
| title_sort |
new species of crossobothrium (cestoda: tetraphyllidea) from the broadnose sevengill shark, notorynchus cepedianus, in argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_00223395_v95_n6_p1479_Ivanov |
| work_keys_str_mv |
AT ivanovva newspeciesofcrossobothriumcestodatetraphyllideafromthebroadnosesevengillsharknotorynchuscepedianusinargentina |
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1807321593796362240 |