Eurytrochus strangei

Eurytrochus strangei
Drawing of a shell of Eurytrochus strangei
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Trochidae
Genus: Eurytrochus
Species: E. strangei
Binomial name
Eurytrochus strangei
(A. Adams, 1853)
Synonyms
  • Eurytrochus dacostana Preston, H.B., 1909
  • Gibbula dacostana Preston, 1909
  • Gibbula (Eurytrochus) strangei (Adams, 1853)
  • Monodonta strangei Adams, 1853 (original description)
  • Trochus strangei Whitelegge, T. 1889
  • Trochus (Gibbula) strangei Henn, A.U. & Brazier, J.W. 1894

Eurytrochus strangei is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]

Description

The shell grows to a length of 10 mm, its diameter 8 mm. The small, rather thin, narrowly umbilicate shell has a globose-conical shape. It is lusterless, olive colored, with scattered white dots, and obliquely radiating brown flames below the sutures, the spiral ribs with minute brown dots. The acute spire is conical,. The sutures are subcanaliculate. The five convex whorls are encircled by strong spiral ridges, 3 on the upper, 4 on the body whorl, the fourth forming the periphery. The interstices are spirally striate, below the suture radiately lamellose striate. The base contains numerous concentric lirae. A patch around the umbilicus is white, articulated with brown. The aperture is subquadrangular, iridescent and sulcate within. The straight columella is usually green tinged.

The strong keels of the upper surface separate this form from allied species. [2]

Distribution

This marine species is endemic to Australia and occurs off Queensland, New South Wales and Victoria.

References

  1. Marshall, B. (2014). Eurytrochus strangei. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719226 on 2014-06-05
  2. H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Gibbula strangei)
External identifiers for Eurytrochus strangei
WoRMS 719226
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