Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks

Recently collected copepod parasites on the narrownose smooth-hound shark Mustelus schmitti Springer revealed enough similarities with Perissopus galeorhini (Yamaguti, 1936) to be considered conspecific. Comparison of these specimens with the types of P. oblongus (Wilson, 1908) showed that P. galeor...

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Autores principales: Etchegoin, J.A., Ivanov, V.A., Timi, J.T.
Formato: JOUR
Materias:
genetic similarity
morphological trait
parasitism
phylogeny
species difference
Animals
Crustacea
Ectoparasitic Infestations
Female
Fish Diseases
Sharks
Chondrichthyes
Copepoda
Mustelus canis canis
Mustelus mustelus
Mustelus schmitti
Pandaridae
Perissopus
Perissopus oblongus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01655752_v50_n1_p31_Etchegoin
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01655752_v50_n1_p31_Etchegoin
record_format dspace
spelling todo:paper_01655752_v50_n1_p31_Etchegoin2023-10-03T15:02:59Z Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks Etchegoin, J.A. Ivanov, V.A. Timi, J.T. genetic similarity morphological trait parasitism phylogeny species difference Animals Crustacea Ectoparasitic Infestations Female Fish Diseases Sharks Chondrichthyes Copepoda Mustelus canis canis Mustelus mustelus Mustelus schmitti Pandaridae Perissopus Perissopus oblongus Recently collected copepod parasites on the narrownose smooth-hound shark Mustelus schmitti Springer revealed enough similarities with Perissopus galeorhini (Yamaguti, 1936) to be considered conspecific. Comparison of these specimens with the types of P. oblongus (Wilson, 1908) showed that P. galeorhini and P. oblongus are distinct species. Therefore, P. galeorhini is considered a valid species rather than a synonym of P. oblongus, as it has been treated since the revision of Cressey (1967). Descriptions of P. galeorhini from M. schmitti and type-material of P. oblongus are provided along with a discussion on their taxonomic status. P. galeorhini differs from P. oblongus in features relating to the anterior margin of cephalothorax, the dorsal plates of the third pedigerous segment and details of the segmentation and armature of the appendages. In addition, an amended diagnosis of Perissopus Steenstrup & and Lütken, 1861 is given, including characters not previously considered by Cressey (1967) such as: the dorsal plate of segment 2 can be small, widely separated, covered by the posterior end of the lateral processes of the cephalothorax and not always extending to the posterior border of the plates of segment 3; and the rami of legs 3 can be 2-segmented. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01655752_v50_n1_p31_Etchegoin
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic genetic similarity
morphological trait
parasitism
phylogeny
species difference
Animals
Crustacea
Ectoparasitic Infestations
Female
Fish Diseases
Sharks
Chondrichthyes
Copepoda
Mustelus canis canis
Mustelus mustelus
Mustelus schmitti
Pandaridae
Perissopus
Perissopus oblongus
spellingShingle genetic similarity
morphological trait
parasitism
phylogeny
species difference
Animals
Crustacea
Ectoparasitic Infestations
Female
Fish Diseases
Sharks
Chondrichthyes
Copepoda
Mustelus canis canis
Mustelus mustelus
Mustelus schmitti
Pandaridae
Perissopus
Perissopus oblongus
Etchegoin, J.A.
Ivanov, V.A.
Timi, J.T.
Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
topic_facet genetic similarity
morphological trait
parasitism
phylogeny
species difference
Animals
Crustacea
Ectoparasitic Infestations
Female
Fish Diseases
Sharks
Chondrichthyes
Copepoda
Mustelus canis canis
Mustelus mustelus
Mustelus schmitti
Pandaridae
Perissopus
Perissopus oblongus
description Recently collected copepod parasites on the narrownose smooth-hound shark Mustelus schmitti Springer revealed enough similarities with Perissopus galeorhini (Yamaguti, 1936) to be considered conspecific. Comparison of these specimens with the types of P. oblongus (Wilson, 1908) showed that P. galeorhini and P. oblongus are distinct species. Therefore, P. galeorhini is considered a valid species rather than a synonym of P. oblongus, as it has been treated since the revision of Cressey (1967). Descriptions of P. galeorhini from M. schmitti and type-material of P. oblongus are provided along with a discussion on their taxonomic status. P. galeorhini differs from P. oblongus in features relating to the anterior margin of cephalothorax, the dorsal plates of the third pedigerous segment and details of the segmentation and armature of the appendages. In addition, an amended diagnosis of Perissopus Steenstrup & and Lütken, 1861 is given, including characters not previously considered by Cressey (1967) such as: the dorsal plate of segment 2 can be small, widely separated, covered by the posterior end of the lateral processes of the cephalothorax and not always extending to the posterior border of the plates of segment 3; and the rami of legs 3 can be 2-segmented.
format JOUR
author Etchegoin, J.A.
Ivanov, V.A.
Timi, J.T.
author_facet Etchegoin, J.A.
Ivanov, V.A.
Timi, J.T.
author_sort Etchegoin, J.A.
title Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
title_short Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
title_full Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
title_fullStr Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
title_full_unstemmed Resurrection of Perissopus galeorhini (Yamaguti, 1936), with notes on the genus Perissopus Steenstrup & Lütken, 1861 (Copepoda: Pandaridae) parasitic on sharks
title_sort resurrection of perissopus galeorhini (yamaguti, 1936), with notes on the genus perissopus steenstrup & lütken, 1861 (copepoda: pandaridae) parasitic on sharks
url http://hdl.handle.net/20.500.12110/paper_01655752_v50_n1_p31_Etchegoin
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AT ivanovva resurrectionofperissopusgaleorhiniyamaguti1936withnotesonthegenusperissopussteenstruplutken1861copepodapandaridaeparasiticonsharks
AT timijt resurrectionofperissopusgaleorhiniyamaguti1936withnotesonthegenusperissopussteenstruplutken1861copepodapandaridaeparasiticonsharks
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