Marginella bairstowi explained

Marginella bairstowi is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.

References

• Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 113
• Cossignani T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408pp
• Petit R.E. (2009) George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa. Zootaxa 2189: 1–218.