Homalopoma cunninghami

Homalopoma cunninghami is a species of small sea snail with calcareous opercula, a marine gastropod mollusk in the family Colloniidae.[2]

Homalopoma cunninghami
Drawing with two views of a shell of Homalopoma cunninghami
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Phasianelloidea
Family: Colloniidae
Subfamily: Colloniinae
Genus: Homalopoma
Species:
H. cunninghami
Binomial name
Homalopoma cunninghami
Synonyms
  • Leptothyra cunninghami (E. A. Smith, 1881)
  • Turbo cunninghami (E. A. Smith, 1881)

Description

The height of the shell varies between 4 mm and 5.5 mm. The small, rose-madder shell has a subglobose shape. It is, perforate in the young state, but when adult imperforate, It contains 42 whorls, the apical one whitish, the rest convex, and finely spirally striated. The shell is also marked with faint oblique lines of growth. The suture is rather deep. The body whorl descends obliquely near the lip. It is somewhat flattened beneath near the center. The aperture is obliquely subcircular and iridescent within. The pearly columella is spread over the umbilicus. The labrum has a narrow pinkish margin within.[3]

Distribution

This marine species is found at depths between 13 m and 665 m off Patagonia, Tierra del Fuego and the Falkland Islands.

gollark: Oh dear.
gollark: It's something something spatial frequency, I'm trying to figure it out somewhat.
gollark: Observe, filtering.
gollark: I'm messing with image processing. By multiplying that mask with the (shifted) FFT of an image, I can effectively make a"low pass filter" thingy. I should probably find some actual educational material on this instead of just tweaking a badly written python program.
gollark: pls repost 849035452651536414

References
  1. Smith, E. A. 1881. Account of the Zoological collections made during the survey of the H.M.S. 'Alert' in the Straits of Magellan and on the coast of Patagonia. IV. Mollusca and Molluscoidea. Proceedings of the Zoological Society of London 1881: 22-44, pls. 3-5.
  2. Rosenberg, G. (2012). Homalopoma cunninghami (E. A. Smith, 1881). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532910 on 2013-02-10
  3. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia (described as Leptothyra cunninhami)
  • To Antarctic Invertebrates
  • To Biodiversity Heritage Library (1 publication)
  • To Encyclopedia of Life
  • To USNM Invertebrate Zoology Mollusca Collection
  • To World Register of Marine Species
  • "Homalopoma cunninghami". Gastropods.com. Retrieved 16 January 2019.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.