title: Some morphological characteristics of Dipetalonema spirocauda Leidy, 1858, isolated from the hooded seal, Cystophora cristata Erxleben 1777.
mesh_terms: D000818:Animals; D010872:Caniformia; D004153:Dipetalonema / Q000033:anatomy & histology*; D008855:Microscopy, Electron, Scanning; D009349:Nematode Infections / Q000662:veterinary*