Amiantofusus amiantus

Amiantofusus amiantus
Shell of Amiantofusus amiantus (syntype at MNHN, Paris)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Fasciolariidae
Genus:	Amiantofusus
Species:	A. amiantus
Binomial name
Amiantofusus amiantus (Dall, 1889)
Synonyms
[1] Fusus amiantus Dall, 1889 Fusinus amiantus (Dall, 1889) Fusus grimaldii Dautzenberg & Fischer H., 1896 Fusus grimaldii var. major Locard, 1897 Meyeria decorata Locard, 1897 Meyeria decorata var. ecaudata Locard, 1897

Amiantofusus amiantus is a species of sea snail, a marine gastropod mollusc in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.[1]

Description

The length of the shell attains 17 mm, its diameter 6.6 mm.

(Original description) The shell is pure white with a straw-colored protoconch and consists of ten whorls. The spire is rather acute, with the whorls obliquely smoothed in front of the sutures. The protoconch is composed of four whorls, smooth on the upper portion and adorned below with semilunar transverse ripples and a basal carina.

The spiral sculpture consists of very fine spiral threads, subtly intersected by wavy growth lines. Additionally, two strong threads are present near the periphery, one of which is obscured by the suture, while the body whorl displays three more prominent anterior threads alongside the typical spiral sculpture of the canal. These strong threads become increasingly prominent, sharply keeled, and more defined as they cross over the transverse riblets.

The transverse sculpture features eight rounded ribs that emerge near the periphery, extending across it and onto the base, where they intersect the spiral sculpture. The suture is appressed and wavy, with the absence of ribs near the suture and the flattening of the shell giving this species a somewhat the appearance of a Pleurotoma, although no notch is present. The spihonal canal is moderate in length and distinctly twisted. The aperture is smooth on the interior, with sharp, simple edges. [2]

Distribution

This marine species occurs in the Gulf of Mexico.

References

1. Amiantofusus amiantus (Dall, 1889). Retrieved through: World Register of Marine Species on 31 August 2010.
2. Dall W.H. 1889. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877–78) and in the Caribbean Sea (1879–80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College, 18: 1–492, pls. 10–40 This article incorporates text from this source, which is in the public domain.

• Locard, A., 1897 – Mollusques testacés. In: Expéditions scientifiques du Travailleur et du Talisman pendant les années 1880, 1881, 1882, 1883, vol. 1, p. 516 p, 22

External links

• Locard A. (1897–1898). Expéditions scientifiques du Travailleur et du Talisman pendant les années 1880, 1881, 1882 et 1883. Mollusques testacés. Paris, Masson. vol. 1 [1897], p. 1–516 pl. 1-22; vol. 2 [1898], p. 1–515, pl. 1-18
• Fraussen K., Kantor Y. & Hadorn R. 2007. Amiantofusus gen. nov. for Fusus amiantus Dall, 1889 (Mollusca: Gastropoda: Fasciolariidae) with description of a new and extensive Indo-West Pacific radiation. Novapex 8 (3–4): 79–101