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Antechiniella septentrionalis n. sp. (Spirurida: Acuariidae), a new intestinal nematode parasite of the tundra vole Microtus oeconomus (Pallas) (Rodentia: Muridae) in the north-east of Russia

Published online by Cambridge University Press:  15 May 2018

E.S. Ivanova*
Affiliation:
Centre of Parasitology of A.N. Severtsov Institute of Ecology and Evolution RAS, Leninskii prospect 33, 119071, Moscow, Russia
N.E. Dokuchaev
Affiliation:
Institute of Biological Problems of the North, Far East Branch, Russian Academy of Sciences, 685000, Magadan, Russia
S.E. Spiridonov
Affiliation:
Centre of Parasitology of A.N. Severtsov Institute of Ecology and Evolution RAS, Leninskii prospect 33, 119071, Moscow, Russia
*
Author for correspondence: E.S. Ivanova E-mail: elena_s_ivanova@rambler.ru

Abstract

Antechiniella septentrionalis n. sp. (Spirurida: Acuariidae) is described from the duodenum of a tundra vole, Microtus oeconomus (Pallas), collected in the Magadan region in the north-east part of Russia. It differs from A. suffodiax (Beveridge & Barker, 1975) and A. sertatum Smales, 1991 mainly in having a larger number of postcloacal papillae (5–6 pairs vs 4 pairs), a differently shaped left spicule, the disposition of precloacal papillae in two rows vs one, and oblong vs oval eggs. Other differences include the different disposition of ovaries in A. septentrionalis n. sp and A. suffodiax and the different structure of deirids in A. septentrionalis n. sp. and A. sertatum. The new species was characterized molecularly (partial sequences for 18S rRNA, 28S rRNA and cox1 mtDNA). The phylogenetic analyses performed showed the affinity of the new species to the members of the Acuariidae and other spirurid nematodes.

Information

Type
Research Paper
Copyright
Copyright © Cambridge University Press 2018 

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