Two new species of Acanthobothrium (Tetraphyllidea: Onchobothriidae) from Pastinachus sephen (Elasmobranchii: Torpediniforms) from the Persian Gulf and Gulf of Oman

Autor:
Maleki, Loghman, Malek, Masoumeh, Palm Harry W.
In:

Folia Parasitologica

Bandangabe: 60
Auflage: 5
ISBN: ISS N 0015-5683 (print), ISSN 1803-6465
Seite: 448 - 456
Jahr: 2013

Einordung:
Institut: Professur Aquakultur und Sea-Ranching

Abstract:
Two new species of Acanthobthrium van Beneden, 1850 from the spiral intestine of
Pastinachus sephen Forsskal, 1775 from the Persian Gulf and Gulf of Oman, off the northern
coast of Iran, are described. The worms were studied with light and scanning electron
microscopy to analyse the surface ultrastructure. Acanthobothrium jalalii n. sp. belongs into
the category 1 species group together with 40 species. This tiny new species retains the
gravid proglottid on the strobili, and differs from the other category 1 species by a small total
length, proglottids, testes, terminal segments in an apolysis condition and the shape of the
cirrus sac. Acanthobothrium sphaera sp. n. is a small worm that belongs into the category 2
species group that is characterized by ≤15 mm total length, ≤50 proglottids, ≤80 testes and
asymmetrical ovary together with 34 species. Acanthobothrium sphaera n. sp. differs from
the category 2 species in small total length, proglottids, testes, a vaginal sphincter, loculus
ratio and ovary type. This is the first report of Acanthobothrium from the cowtail stingray,
Pastinachus sephen, from the Persian Gulf and Gulf of Oman.

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Letzte Änderung des Eintrages: 01.02.2017

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