Uncinaria rauschi (Strongyloidea: Nematoda), a new species of hookworms from Alaskan bears

Abstract

Uncinaria rauschi n. sp. is described from bears, Ursus americanus and U. arctos, from Alaska. A key to the species of the genus plus figures of the bursa of each recognizable species are included.

Türkiye’nin Doğu Anadolu Bölgesi Van İlinde Bir Boz Ayı Yavrusunda Şiddetli Uncinaria (Dochmoides) sp. (Nematoda: Ancylostomatidae) Enfeksiyonu İle İlgili İlk Bildiri

“…Spicules were slender and 0.819-0.954 mm long. The length of the females was 7.2-10.5 mm and the width was 0.275-0.381 mm at the level of vulva [10] . But because of not having the possibility for molecular diagnosis, we also approved to name as Uncinaria spp.…”

“…In North America, a new species of hookworm, Uncinaria (=Dochmoides) yukonensis, was described from specimens collected from wild black bear in Yukon Territory, Canada [6] . A new species of hookworm, U. rauschi, was described by Olsen in both black and brown bears in Alaska [10] . Uncinaria species, originally described as Dochmius ursi were collected from polar bear [4] .…”

Uncinaria sanguinis sp. n. (Nematoda: Ancylostomatidae) from the endangered Australian sea lion, Neophoca cinerea (Carnivora: Otariidae)

“…the identification of examined specimens was attempted using taxonomic keys and species descriptions (Baylis 1933, 1947, Maplestone 1939, chabaud et al 1964, olsen 1968, chabaud and Durette-Desset 1975, Beveridge 1980, Hasegawa 1989, lichtenfels 2009, Willmott and chabaud 2009). …”

“…Eleven species have been described in carnivores (Mammalia: carnivora) and three additional species described in rodents (rodentia), tenrecs (Afrosoricida) and treeshrews (scandentia). the validity of several species has been disputed as a result of unproven host specificity and the questionable significance of some morphological differences (ransom 1924, Baylis 1933, olsen 1968, Beveridge 1980. Molecular techniques coupled with morphological analysis can reduce the uncertainty of species delimitation and description (Pérez-Ponce de león and Nadler 2010).…”

Photomicrographic images of some features of Uncinaria spp (Nematoda: Ancylostomatidae) from otariid pinnipeds

“…Uncinaria spp. share typical characteristics but with variations between species (Cameron 1924;York and Maplestone 1926;Baylis 1933Baylis , 1947Olsen 1952Olsen , 1968Olsen , 1974Wolfgang 1956;Gibbs 1961;Chaubaud et al 1964;Levine 1968;Botto and Mane-Garzon 1975;Chabaud and Durette-Desset 1975;Beveridge 1980;Lichtenfels 1980;Hasegawa 1989). Some structures of the pinniped hookworms will now be mentioned with reference to their photographs.…”