About: Knefastia princeps

Knefastia princeps is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. This magnificent species, one of the finest in a generally striking genus, appears nearest to K. dalli Bartsch among described forms, differing in its larger size, more slender form, the relatively longer and attenuate canal, the slender and well-spaced spiral cords, the very much fewer and less nodulous axial ribs, the more open sinus, and the warmer and brighter coloring, especially of the interior. The single example taken was dredged up alive.