Studies of plant and soil nematodes. 10. Paratylenchus coronatus n. sp. (Nematoda:Oriconematidae), a pin nematode associated with citrus

Abstract

In 1958 numerous males and females of the species of Paratylenchus described in this paper were found in soil around declining Late Valencia orange trees at Koah, North Queensland. Paratylenchus coronatus n.sp. from Queensland is described. The species is characterized by the presence of a labial ridge similar to that of P. arculatus Luc and de Guiran, a stylet 31·2-38 · 9 μ, long in females and males without a stylet.