The teleoconch contains 6-7 whorls bearing a very strong median keel and delicate, foliated varixes (6-9 on the body whorl) forming elongated projections at their intersection with the keel.
The outer lip simple, with a peripheral projection terminating the keel.
The siphonal canal is long and delicate, widely open.
The taxonomy of deep-water forms related to this species is unsettled (see comments in Bouchet & Warén, 1985); some of these correspond to the nominal species Pagodula cossmani (Locard, 1897) which differs in lacking long projections along the shoulder which is not so pronounced, and in having spiral cords below the shoulder in a pattern recalling Trophonopsis barvicensis (Johnston, 1825).
[2] This marine species occurs in the Eastern Atlantic, from the Bay of Biscay to Morocco; in the Mediterranean Sea, usually in 100–300 m depth.