Maximum likelihood phylogenetic tree based on the COI sequence. Somniosus rostratus (KJ083255) was chosen as the outgroup to root the tree.

 
 
  Part of: Zhang M, Shan B, Liu Y, Wang L, Yang C, Liu M, Xie Q, Sun D (2023) A new record of Squalus montalbani (Chondrichthyes: Squaliformes: Squalidae) from the Nansha (Spratly) Islands, South China Sea. Acta Ichthyologica et Piscatoria 53: 51-57. https://doi.org/10.3897/aiep.53.103579