That is Crassispira species. Your specimen looks new species. Mouth is very narrow and apex is blunt. It is very strange. Please refer this article mentioned below. All the best!
Four new African turriform gastropods (Mollusca: Conoidea), 2013, Zootaxa
Please send a high quality photo. By the way, if you want to get the precise answer, maybe you can send the sample to the museum or anywhere who are expert on this animal, same as what I did for crustaceans. Good job, and Good luck :)