折咽线虫属Hopper, 1967 Ptycholaimellus penninae Muthumbi & Vincx, 1998 Ptycholaimellus pirus Huang & Gao, 2016 小桥折咽线虫 Ptycholaimellus ponticus (Filipjev, 1922) Gerlach
条结藻属Tappan, 1968 Syracosphaera pemmadiscus Syracosphaera pirus Halldal & Narkali, 1955 Syracosphaera pirus P.Haldall & Markali Syracosphaera prolongata Gran