Zemitrella stephanophora
Shell of Zemitrella stephanophora (holotype)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Buccinoidea
Family: Columbellidae
Genus: Zemitrella
Species:
Z. stephanophora
Binomial name
Zemitrella stephanophora
(Suter, 1908)
Synonyms[1]

Mitrella stephanophora Suter, 1908

Zemitrella stephanophora is a species of sea snail, a marine gastropod mollusk in the family Columbellidae, the dove snails.[1]

Description

The length of the shell attains 7.5 mm, its diameter 3.7 mm.

The small shell is ovoid, smooth and polishedand translucent. It is yellowish, with spiral bands of brown zigzag lines on the body whorl.

The sculpture consists of a few close spiral threads upon the short beak. The colour is yellowish white, with fulvous zigzag markings on the later spire whorls, and continued on the periphery of the body whorl, a second similar spiral band upon the base.

The spire is rather short, conical and a little higher than the aperture. The outlines are faintly convex. The protoconch is papillate. The spire contains 5 whorls, regularly increasingand flatly convex. The body whorls id ventricose and rounded. The base of the shell is somewhat contracted. The suture is not much impressed. The aperture is narrow, angled above, not much narrowed below, and without a distinct siphonal canal. The outer lip is straight above, convex below and smooth inside. The columella is subvertical, lightly turned to the left below. The inner lip is very narrow and thin, smooth and spreading over the straight parietal wall. The operculum is unknown. (Original description) [2]

Distribution

This marine species is endemic to New Zealand and occurs off Northland to Mahia

References

  1. 1 2 MolluscaBase eds. (2023). MolluscaBase. Zemitrella stephanophora (Suter, 1908). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=511769 on 2023-11-15
  2. ↑ Suter, H. (1908). Descriptions of new species of New Zealand marine shells. Proceedings of the Malacological Society of London. 8: 178-191
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland
  • Morley, M.S., Hayward, B.W., Raven, J.L., Foreman, G.A., Grenfell, H.R. 2006 Intertidal and shallow subtidal biota of Mahia Peninsula, Hawkes Bay, Records of the Auckland Institute and Museum, 43 (
  • Maxwell, P. A. (2009). Cenozoic Mollusca. Pp 232-254 in Gordon, D. P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.
  • Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch
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