The size of an adult shell varies between 22 mm and 60 mm. The inflated shell is rather thin. The spire and lower portion of the body whorl are striate. The color of the shell is chestnut or olivaceous, with usually two bands of irregular white cloudings, and scattered white spots. The aperture has a chocolate color, faintly white-banded in the middle. 
This species occurs in the Atlantic Ocean along Senegal.
- Bruguière, J. G., and Hwass, C. H., 1792. Cone. Encyclopédie Méthodique: Histoire Naturelle des Vers, 1: 586 -757
- WoRMS (2010). Conus guinaicus Hwass in Bruguière, 1792. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224280 on 2011-07-25
- George Washington Tryon, Manual of Conchology vol. VI p. 65; 1879
- Pin, M.; Tack, K.D.L. (1995). Les cônes du Sénégal. [The Conidae of Senegal]. La Conchiglia 277(Suppl.): 1-55,
- Tucker J.K. (2009). Recent cone species database. September 4th 2009 Edition
- Filmer R.M. (2001). A Catalogue of Nomenclature and Taxonomy in the Living Conidae 1758 - 1998. Backhuys Publishers, Leiden. 388pp.
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