Paramontana mayana

Paramontana mayana, common name May's turrid, is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1]

Paramontana mayana
Original image of a shell of Paramontana mayana
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Paramontana
Species:
P. mayana
Binomial name
Paramontana mayana
Hedley, 1922
Synonyms[1]

Pseudodaphnella mayana Hedley, 1922 (original combination)

Description

The length of the shell attains 6 mm, its diameter 2 mm.

(Original description) The small, lanceolate, subturretedshell is rather thin. Its colour is uniform white or uniform cinnamon, or white spotted with cinnamon. The shell contains 6 whorls, including a two-whorled protoconch.

The sculpture is variable, according as extra threads are or are not intercalated. The radials extendi from suture to base and traverse the basal furrow, narrow, discontinuous from whorl to whorl, perpendicular, twelve to fourteen to a whorl. The spirals number from eleven to fifteen, according to presence or absence of intercalated threads. On the snout six or seven close and knotted threads, then a wide basal furrow followed by from five to eight fine threads which by intersection with the radials on the peripheral area enclose large meshes. On the upper whorls are from two to four spirals. The aperture is open and toothless. The varix is much thicker than the ribs. The sinus is very small. The siphonal canal is short and open. [2]

Distribution

This marine species is endemic to Australia and occurs off Tasmania.

References
  1. MolluscaBase (2019). MolluscaBase. Paramontana mayana (Hedley, 1922). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=434582 on 2019-08-07
  2. Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56 This article incorporates text from this source, which is in the public domain.
  • May, W.L. 1923. An illustrated index of Tasmanian shells: with 47 plates and 1052 species. Hobart : Government Printer 100 pp.
  • 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
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
  • Grove, S.J. (2018). A Guide to the Seashells and other Marine Molluscs of Tasmania: Paramontana mayana
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