Austrobela pyrrhogramma is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
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.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
Distribution This species occurs in the Atlantic Ocean off the Azores and in the Bay of Biscay.
References
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 , p. 1-516 pl. 1-22; vol. 2 , p. 1-515, pl. 1-18
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