New records of Amphibiophilus spp. (Nematoda: Amphibiophilidae) parasitic in Strongylopus grayii (Smith) and Amietia del
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New records of Amphibiophilus spp. (Nematoda: Amphibiophilidae) parasitic in Strongylopus grayii (Smith) and Amietia delalandii (Dume´ril & Bibron) (Amphibia: Anura: Pyxicephalidae) in South Africa, with a description of Amphibiophilus bialatus n. sp. Roman Svitin
. Yuriy Kuzmin
. Florence Harnoster
. Louis du Preez
Received: 16 July 2020 / Accepted: 20 September 2020 Ó Springer Nature B.V. 2020
Abstract Nematodes of the genus Amphibiophilus Skrjabin, 1916 are a small group of parasites restricted to pyxicephalid frogs in southern Africa. In the present study, the new species A. bialatus parasitising the clicking stream frog Strongylopus grayii (Smith) as well as two forms parasitising the common river frog Amietia delalandii (Dume´ril & Bibron) from two distant localities are described. Amphibiophilus bialatus n. sp. clearly differs from the remaining species of the genus by having wide cervical alae, the dorsal oesophageal tooth not reaching the oral opening, and
the presence of extra processes on the spicules. Specimens parasitising Am. delalandii in Mpumalanga Province and Limpopo Province, South Africa, differed from other species and from each other in the shape of the gubernaculum, though were almost identical in other characters. Based on morphological and molecular data, specimens from two localities were assigned to Amphibiophilus sp. 1 and Amphibiophilus sp. 2. Pairwise analyses of ITS-28S and cox1 gene fragments are presented for four Amphibiophilus spp.
This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as urn:lsid:zoobank.org:pub: urn:lsid: zoobank.org:pub:A142B996-E33E-4BC0-A4BB-8DDCCD908F 88. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record.
Introduction
This article is part of the Topical Collection Nematoda. R. Svitin (&) Y. Kuzmin I. I. Schmalhausen Institute of Zoology, 15 Bogdan Khmelnytskyi Street, Kyiv 01030, Ukraine e-mail: [email protected] R. Svitin Y. Kuzmin F. Harnoster L. du Preez African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, NorthWest University, Potchefstroom, South Africa R. Svitin L. du Preez South African Institute for Aquatic Biodiversity, Grahamstown 6140, South Africa
Nematodes of the genus Amphibiophilus Skrjabin, 1916 are a small group of parasites infecting the digestive tract of anuran amphibians. To the date, only five species are considered valid, all reported from different parts of southern Africa. The first species of the genus, A. acanthocirratus Skrjabin, 1916, was described from an unidentified frog (reported as ‘‘Ranidae’’) from ‘‘British East Africa’’ (Skrjabin, 1916). The next species, A. natalensis (Walton, 1935) Travassos, 1937) was initially described as Oswaldocruzia natalensis from Am. delalandii (Dume´ril & Bibron) (reported as Rana delalandii) (see Walton, 1935). Lat
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