Heterocithara seriliola

Heterocithara seriliola is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]

Heterocithara seriliola
Original image of a shell of Heterocithara seriliola
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Heterocithara
Species:
H. seriliola
Binomial name
Heterocithara seriliola
Hedley, 1922

Description

The length of the shell attains 9 mm, its diameter 3 mm.

(Original description) The subcylindrical shell is turreted with a pointed apex. Its colour is whitish. It contains 8 whorls. The ribs are narrow, elevated, round-backed, alternating from whorl to whorl, in-bent at the summit, the shaft perpendicular and the base out-curved, thirteen on the penultimate and eleven on the body whorl. The rib before the varix is evanescent. The spirals are prominent cords crossing both ribs and interspaces, on the upper whorls three or four, on the last twelve. The uppermost spiral accentuates the shoulder angle. Two or three on the base are thicker than the rest. The interspaces have microscopic grains set in canvas pattern. The aperture is long, narrow, and unarmed. The varix is larger than the ribs, rising at the insertion, the edge of its outer limb crenulated by spirals. The sinus is rather broad. The columella is perpendicular. The siphonal canal is short and broad.[2]

Distribution

This marine species occurs off Australia, (Queensland), New Caledonia and Taiwan

gollark: It seems reasonable to fear powerful and highly footgun-y tools.
gollark: You're just assuming something is symmetric because you... have examples of values on both sides?
gollark: Don't do that, it's actually bad.
gollark: (I do not know enough population genetics to say and I'd be handwavily guessing half the parameters anyway)
gollark: But a reasonable argument against that argument is that we have different goals to evolution, our environment is different, and possibly it wouldn't be a big enough fitness advantage for stuff to actually happen.

References
  1. WoRMS (2009). Heterocithara seriliola Hedley, 1922. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=434006 on 2017-07-17
  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.
  • Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295.
  • "Heterocithara seriliola". Gastropods.com. Retrieved 16 January 2019.
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