Buccinum undatum L. var. turricula nov. var

In the present article attention is called to the various varieties of our common Buccinum undatum L. and some chief characters are indicated to recognize some of the more common forms, which are figured in the excellent work of Dautzenberg and Fischer. An interesting welk was found along the coast near Noordwijk aan Zee in June 1930. Because this striking form was not described or mentioned in Dautzenberg’s work, the present author described it as a new variety under the name of var. turricula nov. The characters of this variety are: Spire shorter and therefore the body-whorls longer than the height of the mouth, without longitudinal oblique plaits; surface of the shell with many spiral ridges, crossed by the longitudinal lines of growth so as to cause a distinct decussation; each whorl more or less angular on the top, making the spire remarkably turreted.