A key for the identification of genera of the nematode family Trichostrongylidae Leiper, 1912

Abstract

The nematode family Trichostrongylidae is divided into six subfamilies Trichostrongylinae, Libyostrongylinae, Haemonchinae, Cooperiinae, Ostertagiinae and Graphidiinae which are briefly reviewed. The key is based mainly on specimens examined by the authors and includes one genus in the Trichostrongylinae, three genera in the Libyostrongylinae, six in the Haemonchinae, seven in the Cooperiinae, 17 in the Ostertagiinae and two in the Graphidiinae. Pseudostertagia, Pararhabdonema, Parostertagia, Obeliscoides and Travassosius are briefly described, figured and considered as genera of uncertain affinities. Nine genera, namely, Moguranema, Neocooperia, Bergheia, Mazamastrongylus, Paramecistodrrus, Ostertagiana, Ostertamia, Graphidiella and Trichostrongyella, specimens of which have not been available to the authors for examination, are listed giving details of host, habitat and geographical location, together with a summary of the diagnostic characters as described by the original authors.

Phylogeny for Species of Haemonchus (Nematoda: Trichostrongyloidea): Considerations of Their Evolutionary History and Global Biogeography Among Camelidae and Pecora (Artiodactyla)

“…Haemonchus represent the most economically important helminth parasites in cattle, sheep, and goats throughout the world (Gibbs and Herd, 1986), and considerable research has been conducted on those species, H. contortus (Rudolphi, 1803), H. placei (Place, 1893), and H. similis, Travassos, 1914, that are globally distributed in domesticated Bovinae and Caprinae. Another 7 species, H. bedfordi Le Roux, 1929, H. dinniki Sachs, Gibbons and Lweno, 1973, H. horaki Lichtenfels, Pilitt, Gibbons and Boomker, 2001, H. krugeri Ortlepp, 1964, H. lawrencei Sandground, 1933, H. mitchelli Le Roux, 1929, and H. vegliai Le Roux, 1929, are primary parasites among respective host groups and species of wild Bovinae, Cephalophinae, Reduncinae, Aepycerotinae, Antilopinae, Alcelaphinae, and Caprinae in sub-Saharan Africa, whereas H. okapiae van den Berghe, 1937 occurs in Giraffidae, and H. longistipes Railliet and Henry, 1909 occurs in Camelidae and domestic sheep, goats, and rarely, cattle across a broader range extending from Africa to southern Eurasia (Gibbons, 1979;Jacquiet et al, 1995;Lichtenfels et al, 2001Lichtenfels et al, , 2002. Although as a group these nematodes have been the focus of considerable taxonomic study, there has been no previous attempt to elucidate phylogenetic relationships among the recognized species of Haemonchus (e.g., Almeida, 1935;Gibbons, 1979).…”

Türkiye Faunası İçin Karacalarda İki Yeni Nematod Türü: Spiculopteragia spiculoptera (Guschanskaia, 1931) ve Küçük Varyetesi S. (Rinadia) mathevossiani (Ruchliadev, 1948)

“…Nematodes were prepared as temporary whole mounts cleared in phenol -alcohol (80 parts melted phenol crystals and 20 parts absolute ethanol) and examined and measured with a microscope (Eclipse 80i, Nikon Corporation) connected to a digital camera with a liquid crystal display and a measurement specific software (Nikon Digital Sight1 DS-L1). Identification of Spiculopteragia nematodes examined in our material corresponds morphologically to descriptions by the different literatures [2][3][4][5][6][7][8][9] . After examination, specimens were preserved in ethanol-glycerine-formalin protective solution (92 part 70% ethanol, 5 part glycerine, and 3 part commercially available formalin).…”

“…Cervicaprostrongylus, Hyostrongylus, Mazamostrongylus, Spiculopteragia, Teladorsagia, Sarwaria; other groups, a 2-1-2 pattern is typical among species of 9 genera; i.e. 4,5 .…”

Lepus corsicanus gastro-intestinal helminths: first report

“…Cestodes were stained in acetoalum-carmine solution, mounted in Canada-balsam and identified using the key and description of Tenora et al, (1986), Haukisalmi and Henttonen (2003), Haukisalmi and Wickström (2005), Haukisalmi (2009). Nematodes were clarified and mounted in lactophenol, and identified using the keys and descriptions of Erickson (1944), Soulsby (1968), Becklund and Walker (1971), Stringfellow (1972), Gibbons and Khalil (1982), Lichtenfels and Hoberg (1993). For Trichostrongylidae, the number of female belonging to each species was estimated based on the number of males.…”