Carinoturris fortis
Carinoturris fortis is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Description
The length of the decollated shell measures 16 mm, its diameter 7 mm. Distribution
This species occurs in the Pacific Ocean off California, USA. References

 McLean J.H. (1996). The Prosobranchia. In: Taxonomic Atlas of the Benthic Fauna of the Santa Maria Basin and Western Santa Barbara Channel. The Mollusca Part 2 – The Gastropoda. Santa Barbara Museum of Natural History. volume 9: 1–160

External links
  Bartsch, P, Some turrid mollusks of Monterey Bay and vicinity; Proceedings of the Biological Society of Washington, v. 57 p. 57–68
 

fortis
Gastropods described in 1944