Thatcheria

Thatcheria is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.[1]

Thatcheria
Shell and protoconch of Thatcheria mirabilis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Thatcheria
Angas, 1877
Type species
Thatcheria mirabilis Angas, 1877
Species

See text

Synonyms[1]
  • Cochlioconus Yokoyama, 1928
  • † Waitara Marwick, 1931

Description

(Original description) The solid shell is angularly pyriform. The spire is prominent, shorter than the aperture. It is many-whorled with whorls flattened above, strongly keeled at the periphery and contracted below. The aperture shows a broad incurved sinus between the extremity of the last keel and the junction of the body whorl.The siphonal canal is wide and open. The columella is smooth. The outer lip is simple below the sinus.[2]

Species

Species within the genus Thatcheria include:

gollark: ```osmarks@fenrir /tmp> fractalart --helpUsage: fractalart [OPTIONS]Optional arguments: -H, --width WIDTH width of generated image (default: 1000) -W, --height HEIGHT height of generated image (default: 1000) -o, --filename FILENAME filename to save generated image to (default: ./out.png) -h, --help display this help -v, --variance VARIANCE max color channel difference from previous pixel (default: 2048) -s, --saturation SATURATION base color saturation (default: 1.0) -l, --lightness LIGHTNESS base color lightness (default: 0.6) -u, --hue HUE base color hue (default: random) -r, --seed SEED random seed (default: random)```
gollark: I can tune a few of the parameters like this, see.
gollark: I don't know if it is actually fractal, but it *does* work!
gollark: No offense intended, I just don't care about BFuous compilation.
gollark: Maybe. It is only 160 lines, but I don't care for it much.

References
  1. Thatcheria Angas, 1877. Retrieved through: World Register of Marine Species on 14 April 2010.
  2. Angas G.F. (1877). Descriptions of a new genus of gasteropodous Mollusca from Japan, and of a new species of Bullia from Kurachi. Proceedings of the Zoological Society of London. (1877): 529-530, pl. 54
  3. Thatcheria mirabilis Angas, 1877. Retrieved through: World Register of Marine Species on 14 April 2010.
  • Marwick, J. (1931). The Tertiary Mollusca of the Gisborne District. New Zealand Geological Survey Paleontological Bulletin 13:1-177. 18: pls.
  • 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
  • Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
  • A.J. Charig, The Gastropod Genus Thatcheria and its Relationships; Bulletin of the British Museum (Natural History), vol. 7 # 9 (1963)
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
  • Worldwide Mollusc Species Data Base: Raphitomidae
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.