Austrobela pyrrhogramma

Austrobela pyrrhogramma
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Austrobela
Species:	A. pyrrhogramma
Binomial name
Austrobela pyrrhogramma (Dautzenberg & Fischer, 1896)
Synonyms [1]
Bela holomeraLocard, 1897 Bela reconditaLocard, 1897 Gymnobela pyrrhogramma(Dautzenberg & H. Fischer, 1896) Gymnobela holomeraLocard, 1897 Gymnobela reconditaTiberi, 1869 Oenopota holomeraÉ.A.A. Locard, 1897 Pleurotoma pyrrhogrammaDautzenberg & Fischer, 1896 Pleurotoma pyrrhogramma var. multicostataDautzenberg & Fischer H., 1896 Pleurotoma pyrrhogramma var. robustaDautzenberg & Fischer H., 1896

Austrobela pyrrhogramma is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae. ^[1]

Description

The length of the shell attains 17.2 mm, its diameter 5 mm.

(Original description in French) The shell is solid, with a tall, high-spired form that tapers to a sharply acuminate apex. It is composed of ten whorls separated by a shallow yet clearly defined suture. The four embryonic whorls are convex: the first is faintly transversely striated, while the remaining three are finely reticulated. The post-embryonic whorls display, below the excavated infra-sutural zone — ornamented with arched growth folds — a distinct and well-defined keel. Beyond this keel, the whorls become slightly convex and are furnished with arched longitudinal folds directed opposite to those of the infra-sutural zone, as well as with numerous equal, regular, descending cords that pass over the folds. The aperture is elongate-oval, angular at the top and narrowed at the base, where it ends in a short, open siphonal canal. The columella is nearly perpendicular and bears a thin, closely appressed callus. The outer lip is simple, sharp-edged, and broadly and fairly deeply notched at the top. The coloration is white, adorned with narrow longitudinal flame-like markings of yellowish-brown, arranged along the lines of growth; these markings vary considerably in intensity. The embryonic whorls are light brown in color. ^[2]

Distribution

This species occurs in the Atlantic Ocean off the Azores and in the Bay of Biscay.

References

1. Austrobela pyrrhogramma (Dautzenberg & Fischer, 1896) . Retrieved through: World Register of Marine Species  on 29 March 2010.
2. Dautzenberg P. & Fischer H. (1896). Dragages effectués par l'Hirondelle et par la Princesse Alice 1888-1895. 1. Mollusques Gastropodes. Mémoires de la Société Zoologique de France 9: 395-498, pl. 15-22 This article incorporates text from this source, which is in the public domain .

• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213

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
• Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295. doi:10.11646/zootaxa.682.1.1.
• Criscione, F.; Hallan, A.; Fedosov, A.; Puillandre, N. (2021). "Deep Downunder: Integrative taxonomy of Austrobela, Spergo, Theta and Austrotheta (Gastropoda: Conoidea: Raphitomidae) from the deep sea of Australia". Journal of Zoological Systematics and Evolutionary Research.
• "Gymnobela pyrrhogramma". Gastropods.com. Retrieved 16 January 2019.
• MNHN, Paris: Gymnobela pyrrhogramma
• Bouchet & Warren, Revision of the North-East Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda); The Journal of Molluscan Studies, supplement 8, December 1980