Remarks: According to CHEVALDONNÉ et al. (1998) B. seepensis from the Gulf of Mexico and B. seepensis from Mid-Atlantic Ridge appear to have recently diverged and must be considered as two isolated phylogenetic species, although no morphological differences have been found on large series of specimens.
- CHEVALDONNÉ P., JOLLIVET D., FELDMAN R. A., DESBRUYÈRES, d. & LUTZ R. A. & R. C. VRIEJENHOEK (1998) Cah. Biol. Mar. 39: 347-350.
