Nasopharyngeal mites Halarachne halichoeri (Allman, 1847) parasitizing the gray seal Halichoerus grypus (Fabricius, 1791) in the Baltic Sea with notes on other parasitic Halarachnidae associated with marine mammals

Halarachnidae	Host
Halarachnidae	Scientific name	Common name	Class, Order	Family
Halarachne americana Banks, 1899	Monachus tropicalis (Gray, 1850)	Caribbean monk seal	Carnivora
				Phocidae
	Cystophora cristata (Erxleben, 1777)	hooded seal
	Enhydra lutris (Linnaeus, 1758)	sea otter		Mustelidae
Halarachne halichoeri (Allman, 1847)	Halichoerus grypus (Fabricius, 1791)	gray seal
Synonyms	Mirounga leonina (Linnaeus, 1758)	southern elephant seal		Phocidae
Halarachne erratica Fain et Mortelmans, 1959	Phoca largha Pallas, 1811	spotted seal
Halarachne otariae Steding, 1923
	Phoca vitulina Linnaeus, 1758	harbor seal
Halarachne taita Eichler, 1958
	Pygoscelis papua (J. R. Forster, 1781) accidental infection (see the comment in the text)	gentoo penguin	Sphenisciformes Aves	Spheniscidae
	Zalophus californianus (Lesson, 1828) Newell (1947) believes it was Halarachne miroungae	California sea lion		Otariidae
Halarachne laysanae Furman et Dailey, 1980	Monachus schauinslandi Matschie, 1905	Hawaiian monk seal		Phocidae
	Enhydra lutris (Linnaeus, 1758)	sea otter		Mustelidae
	Mirounga angustirostris (Gill, 1866)	northern elephant seal
Halarachne miroungae Ferris, 1925
	Mirounga leonina (Linnaeus, 1758)	southern elephant seal		Phocidae
	Phoca vitulina Linnaeus, 1758	harbor seal
	Arctocephalus australis (Zimmermann, 1783)	South American fur seal
	Arctocephalus pusillus (Schreber, 1775)		Carnivora
	(= Arctocephalus tasmanicus Scott et Lord, 1926)	cape fur seal
	(= Arctocephalus doriferus Wood Jones, 1925)
	Arctocephalus tropicalis (J. Gray, 1872) Banks (1910) does not specify the species, he only provides information such as “seal pup”. On the other hand, Oudemans (1925) reports that they might represent (Arctophora) elegans Peters (=? Arctocephalus forsteri (Lesson) or Macrorhinus leoninus (L.). However, it follows from Oudemans’ notes that there might be three species (Arctocephalus tropicalis, A. forsteri and M. leonina). The original record was used and this certainly applied to “Arctophoca” and not “Arctophora” or Arctocephalus forsteri (Lesson, 1828) Banks (1910) does not specify the species, he only provides information such as “seal pup”. On the other hand, Oudemans (1925) reports that they might represent (Arctophora) elegans Peters (=? Arctocephalus forsteri (Lesson) or Macrorhinus leoninus (L.). However, it follows from Oudemans’ notes that there might be three species (Arctocephalus tropicalis, A. forsteri and M. leonina). The original record was used and this certainly applied to “Arctophoca” and not “Arctophora”
				Otariidae
		Subantarctic fur seal or
	(= Otaria (Arctophora) elegans Peters, 1876)	Australasian fur seal
Orthohalarachne attenuata (Banks, 1910)	(=? Arctocephalus forsteri (Lesson, 1828))
Synonyms	Callorhinus ursinus (Linnaeus, 1758)	northern fur seal
Halarachne attenuata Banks, 1910
Halarachne otariae Steding, 1923	Eumetopias jubatus (Schreber, 1776)	Steller sea lion
Halarachne reflexa Tubb, 1937	Homo sapiens Linnaeus, 1758 accidental infection (see the comment in the text)	man	Primates	Hominidae
Halarachne zalophi Oudemans, 1916
Halarachne rosmari Oudemans, 1916	Mirounga angustirostris (Gill, 1866)	northern elephant seal
Halarachne magellanica Finnegan, 1934	Mirounga leonina Linnaeus, 1758 Banks (1910) does not specify the species, he only provides information such as “seal pup”. On the other hand, Oudemans (1925) reports that they might represent (Arctophora) elegans Peters (=? Arctocephalus forsteri (Lesson) or Macrorhinus leoninus (L.). However, it follows from Oudemans’ notes that there might be three species (Arctocephalus tropicalis, A. forsteri and M. leonina). The original record was used and this certainly applied to “Arctophoca” and not “Arctophora”			Phocidae
Orthohalarachne magellanica (Finnegan, 1934)		southern elephant seal
Orthohalarachne reflexa (Tubb, 1937)	(= Macrorhinus leoninus (Linnaeus, 1758))
Orthohalarachne rosmari (Oudemans, 1916)	Neophoca cinerea (Péron, 1816)	Australian sea lion		Otariidae
Orthohalarachne zalophi (Oudemans, 1916)	Odobenus rosmarus (Linnaeus, 1758)	walrus		Odobenidae
	Otaria fl avescens (Shaw, 1800)
		South American sea lion		Otariidae
	(= Otaria byronia (de Blainville, 1820))
	Phoca vitulina Linnaeus, 1758	harbor seal		Phocidae
			Carnivora
	Zalophus californianus (Lesson, 1828)	California sea lion
	Zalophus wollebaeki Sivertsen, 1953	Galapagos sea lion
	Arctocephalus australis (Zimmermann, 1783)	South American fur seal
Orthohalarachne diminuata (Doetschman
1944)	Arctocephalus pusillus (Schreber, 1775)	cape fur seal		Otariidae
	(= Arctocephalus doriferus Wood Jones, 1925)
Synonyms
Halarachne diminuata Doetschman, 1944	Callorhinus ursinus (Linnaeus, 1758)	northern fur seal
Orthohalarachne chabaudi Gretillat,1960	Eumetopias jubatus (Schreber, 1776)	Steller sea lion
Orthohalarachne letalis Popp, 1961	Zalophus californianus (Lesson, 1828)	California sea lion

Body size (means, ranges, SD; micrometers) of Halarachne halichoeri

Morphological features	Present study		Oudemans (1925) the author provides only means for selected features
Morphological features	Larvae (n = 45)	Females (n = 18)	Larvae (n = 2)	Females (n = 5)
Width of opisthosoma	580 (488–756), SD 68	977(708–1122), SD 106	725	927
Width of podosoma at the level of legs III	560(439–732), SD 79	–		–
Width of podosoma at the level of legs IV	–	786(659–952), SD 63	–	891
Length of dorsal shield	–	1023 (976–1049), SD 24	–	–
Width of dorsal shield	–	497(464–537), SD 21	–	–
Total body length	1299 (1098–1586), SD 128	2996 (2391–3367), SD 223	1320	2818

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Nasopharyngeal mites Halarachne halichoeri (Allman, 1847) parasitizing the gray seal Halichoerus grypus (Fabricius, 1791) in the Baltic Sea with notes on other parasitic Halarachnidae associated with marine mammals

Categoría del artículo: Original research paper

Publicado en línea: 03 dic 2018

Páginas: 398 - 404

Recibido: 03 feb 2018

Aceptado: 16 mar 2018

DOI: https://doi.org/10.1515/ohs-2018-0037

Palabras clave
parasite, mite, gray seal, Baltic Sea, marine mammals

© 2018 Faculty of Oceanography and Geography, University of Gdańsk, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Body size (means, ranges, SD; micrometers) of Halarachne halichoeri

Nasopharyngeal mites Halarachne halichoeri (Allman, 1847) parasitizing the gray seal Halichoerus grypus (Fabricius, 1791) in the Baltic Sea with notes on other parasitic Halarachnidae associated with marine mammals

Leszek Rolbiecki

Joanna N. Izdebska

Konrad Bidziński

Martyna Jankowska-Jarek

Categoría del artículo: Original research paper

Publicado en línea: 03 dic 2018

Páginas: 398 - 404

Recibido: 03 feb 2018

Aceptado: 16 mar 2018

DOI: https://doi.org/10.1515/ohs-2018-0037

Palabras claveparasite, mite, gray seal, Baltic Sea, marine mammals

© 2018 Faculty of Oceanography and Geography, University of Gdańsk, Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Body size (means, ranges, SD; micrometers) of Halarachne halichoeri

Palabras clave
parasite, mite, gray seal, Baltic Sea, marine mammals