ML tree of Oncholaimoidea based on 18S DNA sequences. Numbers at the nodes are SH-aLRT (left) greater than 70% and UFBoot (right) greater than 80%.

 
 
  Part of: Shimada D, Kakui K, Fujita Y (2023) A new species of free-living marine nematode, Fotolaimus cavus sp. nov. (Nematoda, Oncholaimida, Oncholaimidae), isolated from a submarine anchialine cave in the Ryukyu Islands, southwestern Japan. Zoosystematics and Evolution 99(2): 519-533. https://doi.org/10.3897/zse.99.109097