Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae)
Three new species of diphyllidean cestodes are described from rhinobatid elasmobranchs of the genus Glaucostegus from the Indian and Pacific Oceans. All 3 new species have 11 apical hooks (6 type-A and 5 type-B hooks) and, therefore, differ in this feature from all but 5 of the 39 valid species of E...
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todo:paper_00223395_v98_n2_p365_Ivanov2023-10-03T14:31:52Z Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) Ivanov, V.A. Caira, J.N. fish flatworm host-parasite interaction new record new species taxonomy article Borneo cestode Echinobothrium chisholmae Echinobothrium fautleyae Echinobothrium minutamicum Echinobothrium rayallemangi Echinobothrium sematanense Echinobothrium syrtensis Echinobothrium tetabuanense Echinobothrium weipaense Elasmobranchii fish gill Glaucostegus host parasite interaction Microthrix nonhuman ovary parasite identification scanning electron microscopy species identification spine structure analysis taxonomic identification testis worm Animals Cestoda Cestode Infections Fish Diseases Indian Ocean Microscopy, Electron, Scanning Pacific Ocean Prevalence Skates (Fish) Indian Ocean Pacific Ocean South China Sea Candidatus Microthrix Cestoda Diphyllidea Echinobothrium Echinobothrium chisholmae Elasmobranchii Rajiformes Rhinobatidae Three new species of diphyllidean cestodes are described from rhinobatid elasmobranchs of the genus Glaucostegus from the Indian and Pacific Oceans. All 3 new species have 11 apical hooks (6 type-A and 5 type-B hooks) and, therefore, differ in this feature from all but 5 of the 39 valid species of Echinobothrium. In addition, Echinobothrium tetabuanense n. sp. from Glaucostegus cf. typus in the Sulu Sea, Borneo differs from all of its congeners in the number and arrangement of hooklets, number of spines on the cephalic peduncle, and the number and distribution of testes. Echinobothrium sematanense n. sp. from Glaucostegus thouin in the South China Sea, Borneo, can be distinguished from its congeners based on the following combination of characters, i.e., small size (worms less than 1 mm long), number of hooklets, spines per column on the cephalic peduncle, and number of testes. Echinobothrium weipaense n. sp. from northern Australia is unique in the position of the cirrus sac and genital pore, both structures being well posterior and not overlapping the ovary. An emended description of the microthrix pattern on the scolex of Echinobothrium chisholmae from G. typus in Australia is also presented. © 2012 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_v98_n2_p365_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 |
fish flatworm host-parasite interaction new record new species taxonomy article Borneo cestode Echinobothrium chisholmae Echinobothrium fautleyae Echinobothrium minutamicum Echinobothrium rayallemangi Echinobothrium sematanense Echinobothrium syrtensis Echinobothrium tetabuanense Echinobothrium weipaense Elasmobranchii fish gill Glaucostegus host parasite interaction Microthrix nonhuman ovary parasite identification scanning electron microscopy species identification spine structure analysis taxonomic identification testis worm Animals Cestoda Cestode Infections Fish Diseases Indian Ocean Microscopy, Electron, Scanning Pacific Ocean Prevalence Skates (Fish) Indian Ocean Pacific Ocean South China Sea Candidatus Microthrix Cestoda Diphyllidea Echinobothrium Echinobothrium chisholmae Elasmobranchii Rajiformes Rhinobatidae |
spellingShingle |
fish flatworm host-parasite interaction new record new species taxonomy article Borneo cestode Echinobothrium chisholmae Echinobothrium fautleyae Echinobothrium minutamicum Echinobothrium rayallemangi Echinobothrium sematanense Echinobothrium syrtensis Echinobothrium tetabuanense Echinobothrium weipaense Elasmobranchii fish gill Glaucostegus host parasite interaction Microthrix nonhuman ovary parasite identification scanning electron microscopy species identification spine structure analysis taxonomic identification testis worm Animals Cestoda Cestode Infections Fish Diseases Indian Ocean Microscopy, Electron, Scanning Pacific Ocean Prevalence Skates (Fish) Indian Ocean Pacific Ocean South China Sea Candidatus Microthrix Cestoda Diphyllidea Echinobothrium Echinobothrium chisholmae Elasmobranchii Rajiformes Rhinobatidae Ivanov, V.A. Caira, J.N. Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
topic_facet |
fish flatworm host-parasite interaction new record new species taxonomy article Borneo cestode Echinobothrium chisholmae Echinobothrium fautleyae Echinobothrium minutamicum Echinobothrium rayallemangi Echinobothrium sematanense Echinobothrium syrtensis Echinobothrium tetabuanense Echinobothrium weipaense Elasmobranchii fish gill Glaucostegus host parasite interaction Microthrix nonhuman ovary parasite identification scanning electron microscopy species identification spine structure analysis taxonomic identification testis worm Animals Cestoda Cestode Infections Fish Diseases Indian Ocean Microscopy, Electron, Scanning Pacific Ocean Prevalence Skates (Fish) Indian Ocean Pacific Ocean South China Sea Candidatus Microthrix Cestoda Diphyllidea Echinobothrium Echinobothrium chisholmae Elasmobranchii Rajiformes Rhinobatidae |
description |
Three new species of diphyllidean cestodes are described from rhinobatid elasmobranchs of the genus Glaucostegus from the Indian and Pacific Oceans. All 3 new species have 11 apical hooks (6 type-A and 5 type-B hooks) and, therefore, differ in this feature from all but 5 of the 39 valid species of Echinobothrium. In addition, Echinobothrium tetabuanense n. sp. from Glaucostegus cf. typus in the Sulu Sea, Borneo differs from all of its congeners in the number and arrangement of hooklets, number of spines on the cephalic peduncle, and the number and distribution of testes. Echinobothrium sematanense n. sp. from Glaucostegus thouin in the South China Sea, Borneo, can be distinguished from its congeners based on the following combination of characters, i.e., small size (worms less than 1 mm long), number of hooklets, spines per column on the cephalic peduncle, and number of testes. Echinobothrium weipaense n. sp. from northern Australia is unique in the position of the cirrus sac and genital pore, both structures being well posterior and not overlapping the ovary. An emended description of the microthrix pattern on the scolex of Echinobothrium chisholmae from G. typus in Australia is also presented. © 2012 American Society of Parasitologists. |
format |
JOUR |
author |
Ivanov, V.A. Caira, J.N. |
author_facet |
Ivanov, V.A. Caira, J.N. |
author_sort |
Ivanov, V.A. |
title |
Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
title_short |
Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
title_full |
Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
title_fullStr |
Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
title_full_unstemmed |
Description of three new species of Echinobothrium (Cestoda: Diphyllidea) from indo-pacific elasmobranchs of the genus Glaucostegus (Rajiformes: Rhinobatidae) |
title_sort |
description of three new species of echinobothrium (cestoda: diphyllidea) from indo-pacific elasmobranchs of the genus glaucostegus (rajiformes: rhinobatidae) |
url |
http://hdl.handle.net/20.500.12110/paper_00223395_v98_n2_p365_Ivanov |
work_keys_str_mv |
AT ivanovva descriptionofthreenewspeciesofechinobothriumcestodadiphyllideafromindopacificelasmobranchsofthegenusglaucostegusrajiformesrhinobatidae AT cairajn descriptionofthreenewspeciesofechinobothriumcestodadiphyllideafromindopacificelasmobranchsofthegenusglaucostegusrajiformesrhinobatidae |
_version_ |
1807321594038583296 |