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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 5958

B.A. Ebsary; Generic revision of Criconematidae (Nematoda): Nothocriconema and related genera with proposals for Nothocriconemella n. gen. and Paracriconema n. gen. Can.J.Zool. 59:1227-1236, 1981

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The genera Nothocriconema, Lobocriconema, Neolobocriconema, and Merocriconema and revised, diagnosed, and illustrated. Two proposed new genera, Nothocriconemella and Paracriconema, are described. Nothocriconemella differs from Nothocriconema by having the first head annule narrower and not strongly separated from the second, retrorse body annules 4-6 µm thick, and smooth-scaled juveniles. Paracriconema differs from Nothocriconema by having a rounded conical tail of four to eight annules, VL/VB=1(0.7-1.1), and smooth-scaled juveniles. Nothocriconema arcanum is synonymized with Nothocriconemella pacifica and Nothocriconema mukovum with Nothocriconemella mutabilis. Nothocriconema acriculum, N. calvum, N. coorgi, N. degrissei, N. demani, N. grassator, N. kovacsi, N. longulum, N. macilentum, N. mutabile, N. orientale, N. pacificum, N. paraguayense, N. pasticum, N. permistum, N. psammophilum, and N. sphagni are transferred to Nothocriconemella, becoming new combinations. Other new combinations include Lobocriconema hlagum, Paracriconema dubium, P. duplicivestitum, P. lamellatum, P. rarum, and P. solitarium.