Aulacofusus brevicauda, common name the thick-ribbed whelk, is a species of sea snail, a marine gastropod mollusc in the family Buccinidae, the true whelks.
Subspecies:
- Aulacofusus brevicauda fortilirata <small>(Sowerby III, 1913)</small>: synonym of Aulacofusus periscelidus <small>(Dall, 1891)</small> (junior synonym)
- Aulacofusus brevicauda kurilensis <sup>A. N. Golikov & Gulbin, 1977</sup>
Description
The length of the shell attains 60 mm, its diameter 25 mm.
(Originally description in Latin of Neptunea (Sipho) terebralis) The shell is elongated and ovato-fusiform in shape. It possesses a reddish-horn coloration and an externally chalky texture, marked by regular longitudinal striations. The surface is encircled by a series of ribs and grooves of subequal width.
The spire consists of approximately 8 whorls, though the specimen specifically exhibits 7 1/2 rounded whorls that are distinctly tabulate at their upper margins. The body whorl is well-proportioned, measuring one-third of the total shell length. The aperture is pyriform and terminates in a moderate rostrum. The outer lip is gracefully arched and features small submarginal denticles on the interior. This inner surface is further adorned with reddish streaks that correspond to the external ribs of the shell.
Distribution
This species occurs in Arctic waters.
References
- Deshayes, G. P., 1832 Histoire naturelle des vers. In: Encyclopédie méthodique, vol. II(2), p. 1-594
- Kosyan A.R. & Kantor Yu.I. (2013). Revision of the genus Aulacofusus Dall, 1918 (Gastropoda: Buccinidae). Ruthenica<. 23(1): 1-33
External links
- Deshayes G.P. (1830-1832). Encyclopédie méthodique ou par ordre de matières. Histoire naturelle des Vers et Mollusques. Vol. 2, part 1: i-vi, 1-256 [Livraison 101, 1 Feb 1830; part 2: 1-144 [Livraison 101, 1 Feb. 1830], 145-594 [Livraison 102, 29 Sept. 1832]. Vol. 3: 595-1152 [Livraison 102, 29 Sept. 1832 ]
- Mörch O.A.L. 1862. Description d'une nouvelle espèce de fuseau. Journal de Conchyliologie, 10: 36-37, pl. 1 fig. 1
- Middendorff T. A. von. (1849). Beiträge zur einer Malacozoologica Rossica, II. Aufzählung und Beschreibung der zur Meeresfauna Russlands gehörigen Einschaler. Mémoires de l'Académie Impériale des Sciences de St-Petersbourg, sixième série, Sciences naturelles. 6: 329-516, pl. 1-11
- Bouchet, P.; Warén, A. (1985). Revision of the Northeast Atlantic bathyal and abyssal Neogastropoda excluding Turridae (Mollusca, Gastropoda). Bollettino Malacologico. supplement 1: 121-296