Morphology oral region. Serrations of the cirri (red arrow) (a). Velar tentacle (yellow arrow) of the wheel organ having a singular variation in the shape, some projections were different in length and shape (b, c).

 
 
  Part of: Campos-Dávila L, Pérez-Estrada CJ, Rodríguez-Estrella R, Morales-Bojórquez E, Brun-Murillo FG, Balart EF (2019) Seagrass Halodule wrightii as a new habitat for the amphioxus Branchiostoma californiense (Cephalochordata, Branchiostomidae) in the southern Gulf of California, Mexico. ZooKeys 873: 113-131. https://doi.org/10.3897/zookeys.873.33901