Longchaeus achates

Last updated

Longchaeus achates
Pyramidella achates 001.png
Drawing of a shell of Longchaeus achates
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Longchaeus
Species:
L. achates
Binomial name
Longchaeus achates
(Gould, 1853) [1]
Synonyms
  • Odostomia achatesGould, 1853 (basionym)
  • Pyramidella (Pharcidella) achatesGould, 1853
  • Pyramidella achates(A. Gould, 1853)

Longchaeus achates is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. [2] [3]

Contents

Description

The shell is stout, shining, milk-white, with irregular, flammulated spots of rust color, which are densest about one-third of the distance between the sutures anterior to the summits, where they form an almost continuous band. The length of the shell varies between 9.8 and 11.6 mm (0.39 and 0.46 in). (The whorls of the protoconch are decollated.) The ten whorls of the teleoconch are weakly rounded, slightly shouldered and faintly crenulated at the summit. They are marked by lines of growth, which are somewhat variable in strength, the strongest being on the side of the crenulations. The sutures are well impressed. The periphery is marked by a moderately strong, spiral sulcus. The base of the shell is rather long, and is crossed by many lines of growth. The aperture is elongate-pyriform, and rather compressed laterally. The posterior angle is acute. The outer lip is thin. The columella is short, and heavy. It is bounded by a low, strong basal fasciole, bearing three oblique folds, the posterior one of which is lamellar and situated a little anterior to the insertion of the columella; the other two folds are much less strongly developed and more oblique. The parietal wall is covered with a thin callus. [4]

Distribution

The type species was found in the Pacific Ocean off the Gulf of California.

Related Research Articles

<i>Ividia aepynota</i> Species of mollusk

Ividia aepynota is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Besla convexa</i> Species of gastropod

Besla convexa is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia deceptrix</i> Species of gastropod

Odostomia deceptrix is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia donilla</i> Species of gastropod

Odostomia donilla is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia fasciata</i> Species of gastropod

Odostomia fasciata is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia lucasana</i> Species of gastropod

Odostomia lucasana is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia minutissima</i> Species of gastropod

Odostomia minutissima is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Parthenina meta</i> Species of gastropod

Parthenina meta is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia telescopium</i> Species of gastropod

Odostomia telescopium is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia sanctorum</i> Species of gastropod

Odostomia sanctorum is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia raymondi</i> Species of gastropod

Odostomia raymondi is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia torrita</i> Species of gastropod

Odostomia torrita is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Pyramidella adamsi</i> Species of gastropod

Pyramidella adamsi, common name the Adams' pyram, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Longchaeus auricoma</i> Species of gastropod

Longchaeus auricoma is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Longchaeus conicus</i> Species of gastropod

Longchaeus conicus is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Pyramidella magdalenensis</i> Species of gastropod

Pyramidella magdalenensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Longchaeus mazatlanicus</i> Species of gastropod

Longchaeus mazatlanicus is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Pyramidella moffati</i> Species of gastropod

Pyramidella moffati is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Pyramidella panamensis</i> Species of gastropod

Pyramidella panamensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Turbonilla mexicana</i> Species of gastropod

Turbonilla mexicana is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

References

  1. ↑ Gould, Bost. Journ. Nat. Hist., vol. 6, 1852, p. 385, pl. 14, fig. 13
  2. ↑ MolluscaBase eds. (2022). MolluscaBase. Longchaeus achates (A. Gould, 1853). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1547947 on 2022-03-13
  3. ↑ Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064
  4. ↑ Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 8; 1909
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.