| discovery of new ohbayashinema spp. (nematoda: heligmosomoidea) in ochotona princeps and ochotona cansus (lagomorpha: ochotonidae) from western north america and central asia, with considerations of historical biogeography. | three new species of ohbayashinema (nematoda, heligmosomoidea) are described from localities in western north america and central asia. two of these species, ohbayashinema nearctica n. sp. and ohbayashinema aspeira n. sp., are parasitic in american pika, ochotona princeps. ohbayashinema nearctica is differentiated from the 5 known species of the genus parasitic in ochotonidae from the old world by very long spicules and an oblique axis of orientation for the ridges composing the synlophe. ohbaya ... | 2010 | 20557204 |
| the life cycle of ohbayashinema erbaevae (nematoda, heligmosomoidea, heligmosomidae) in ochotona rufescens rufescens (ochotonidae). | the morphogenesis and the chronology of the life cycle of ohbayashinema erbaevoe durette-desset et al, 2000, a parasite of ochotona daurica from buriatia were studied in detail in an experimental host, ochotona rufescens rufescens. worm-free pikas were each infected per os with o. erbaevae larvae and were killed at one day post infection (dpi 1) and every 12 hours from 1.5 to 8 days post infection. by dpi 1, all the larvae were exsheathed and in the small intestine. the third moult occurred in 2 ... | 2001 | 11802269 |
| phylogenetic relationships of three species within the family heligmonellidae (nematoda; heligmosomoidea) from japanese rodents and a lagomorph based on the sequences of ribosomal dna internal transcribed spacers, its-1 and its-2. | nematodes of the family heligmonellidae (heligmosomoidea; trichostrongylina) reside in the digestive tracts of rodents and lagomorphs. although this family contains large numbers of genera and species, genetic information on the heligmonellidae is very limited. we collected and isolated adult worms of three species in japan that belong to the family heligmonellidae, namely heligmonoides speciosus (konno, 1963) durette-desset, 1970 (hs) from apodemus argenteus, orientostrongylus ezoensis tada, 19 ... | 2012 | 22458194 |