Paramontana rufozonata (Angas 1877)

Paramontana rufozonata, common name red-zoned turrid, is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.^[1]

Description

The length of the shell attains 5 mm.

(Original description) The fusiformly turreted, solid shell is white, sometimes with a zone of double interrupted chestnut lines near the base of the body whorl, similar chestnut markings being occasionally apparent here and there near the upper portion of the whorls. The shell contains 6 whorls, convex, longitudinally ribbed and crossed with transverse ridges that become sharply and prominently nodulous upon the ribs. The spire is sharp with a light brown apex. The aperture is narrowly quadrate. The outer lip is varicose and denticulated. The posterior sinus is moderate. ^[2]

(Discussion as Pseudodaphnella rufozonata by Charles Hedley) By G. B. Sowerby ^[3] this species was united to P. tincta Reeve, and to P. albifuniculata Reeve, an arrangement copied by Pritchard and Gatliff.^[4] But P. rufozonata is only two-thirds the height of P. tincta, is of a more slender build, and lacks the peculiar excavate base of that tropical species. The latter feature is shown in Reeve's figure, and is mentioned by Hervier ^[5] as the " depression circulaire autour de son canal basal." The records by Melvill and Standen ^[6] and by Bouge and Dautzenberg ^[7] of P. rufozonata, from the Loyalty Islands, are doubtless due to the confusion between this and P. tincta. P. rufozonata is indeed more nearly related to P. albifuniculata Reeve, but is smaller, more fusiform, and has the radials more prominent owing to the spirals being slighter. A more distant relation is P. barnardi, easily separable by the heavier sculpture and striking colour pattern.

Distribution

This marine species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania and Victoria.

References

• Verco, J.C. 1909. Notes on South Australian marine Mollusca with descriptions of new species. Part XII. Transactions of the Royal Society of South Australia 33: 293–342
• Laseron, C. 1954. Revision of the New South Wales Turridae (Mollusca). Australian Zoological Handbook. Sydney : Royal Zoological Society of New South Wales pp. 56, pls 1–12
• Powell, A.W.B. 1966. The molluscan families Speightiidae and Turridae, an evaluation of the valid taxa, both Recent and fossil, with list of characteristic species. Bulletin of the Auckland Institute and Museum. Auckland, New Zealand 5: 1–184, pls 1–23

Paramontana rufozonata is een slakkensoort uit de familie van de Raphitomidae.^[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1877 door Angas.

Paramontana rufozonata é uma espécie de gastrópode do gênero Paramontana, pertencente a família Raphitomidae.^[1]

Referências