Pusionella buccinata

Pusionella buccinata is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.^[1][2] Found by Lamarck in 1822.

This species has also been considered a synonym of Pusionella vulpina.^[3]

Pusionella buccinata is a species of sea snail, a marine gastropod mollusk belonging to the family Clavatulidae [1]. This species was formally described by Jean-Baptiste Lamarck in 1822 [1, 2].

The shell of Pusionella buccinata is characterized by its fusiform (spindle-shaped) or somewhat stout, "buccinoid" appearance, which likely inspired its specific name "buccinata" (resembling a Buccinum snail, or common whelk). While specific measurements are not widely detailed, it shares general characteristics with other species within the genus Pusionella.

Common features of the genus Pusionella that would apply to P. buccinata include:

• Shell Morphology: The shell is typically solid, with a smooth and often shining surface [5]. The spire is usually sharp and composed of numerous whorls.
• Aperture: The aperture (opening) is relatively narrow and extends for the length of the body-whorl [5].
• Siphonal Canal: It possesses a short siphonal canal, which is often carinated (keeled) at its base [5].
• Outer Lip: The outer lip of the aperture is typically sharp [5].
• Anal Sinus: Unlike some other turrids, the lip in Pusionella species is noted for lacking a prominent anal sinus [5]. This distinguishes it from many other members of the broader Conoidea superfamily.
• Operculum: The operculum (a lid-like structure) is unguiform (claw-shaped) with an apical nucleus [5].

The shell may also exhibit a thin and smooth epidermis, or it could be longitudinally or spirally ridged, sometimes tufted [5].

Pusionella buccinata is a marine species primarily found off the coast of West Africa [1, 4]. This distribution places it within the tropical to subtropical waters of the Eastern Atlantic Ocean.

The West African coast is known for its distinct marine faunal provinces, and species like P. buccinata are characteristic inhabitants of these warm, nearshore waters.

As a marine gastropod, Pusionella buccinata inhabits the coastal and subtidal zones of the West African continental shelf. Like other members of the genus Pusionella, it likely prefers sandy or silty substrates [3].

Members of the superfamily Conoidea, including those in the family Clavatulidae, are generally predatory marine snails. They are known to hunt other invertebrates, often employing a specialized venom delivery system via their radular teeth to immobilize prey. However, specific details on the diet or feeding mechanisms of Pusionella buccinata are not readily available in common scientific literature. Its habitat on the seabed would allow it to forage for small invertebrates.

Pusionella buccinata is classified within the following taxonomic hierarchy [1]:

• Domain: Eukaryota
• Kingdom: Animalia
• Phylum: Mollusca
• Class: Gastropoda
• Subclass: Caenogastropoda
• Order: Neogastropoda
• Superfamily: Conoidea
• Family: Clavatulidae Gray, 1853
• Genus: Pusionella Gray, 1847
• Species: Pusionella buccinata (Lamarck, 1822)

The original binomial name for this species was Fusus buccinatus Lamarck, 1822 [1, 2]. This indicates that the species was initially described under the genus Fusus, which historically was a broad genus for spindle-shaped snails, but has since undergone significant reclassification. The subsequent placement of the species into the genus Pusionella (established by J. E. Gray in 1847) and the family Clavatulidae reflects advancements in molluscan systematics, which have refined the understanding of evolutionary relationships based on more detailed morphological and molecular evidence.

Synonyms for Pusionella buccinata include [1]:

• Fusus buccinatus Lamarck, 1822 (original combination)

Additionally, some sources have historically considered Pusionella buccinata as a synonym of Pusionella vulpina (Born, 1780), though current classifications generally treat them as distinct species within the same genus [1, 5].

• [1] Pusionella buccinata - Wikipedia. (n.d.). Retrieved May 30, 2025, from
• [2] World Register of Marine Species - Pusionella buccinata (Lamarck, 1822) - WoRMS. (n.d.). Retrieved May 30, 2025, from https://www.marinespecies.org/aphia.php?p=taxdetails&id=434831
• [3] Pusionella ghanaensis - Wikipedia. (n.d.). Retrieved May 30, 2025, from https://en.wikipedia.org/wiki/Pusionella_ghanaensis
• [4] Pusionella - Wikipedia. (n.d.). Retrieved May 30, 2025, from https://en.wikipedia.org/wiki/Pusionella
• [5] ERMS - Pusionella J. E. Gray, 1847 - MarBEF Data System. (n.d.). Retrieved May 30, 2025, from https://marbef.org/data/aphia.php?p=taxdetails&id=224449

• Lamarck, JBPA de M. "de, 1822." Histoire Naturelle des Animaux sans vertébrés 7 (1815).
• Finet Y. & Snyder M.A. (2012). Illustrations and taxonomic placement of the Recent Fusus and Fasciolaria in the Lamarck collection of the Muséum d’Histoire Naturelle, Geneva (Caenogastropoda, Buccinoidea, Gastropoda). Zootaxa. 3507: 1-37-page(s): figs 14–15