Misplaced Pages

Ammonicera japonica: Difference between revisions

Article snapshot taken from[REDACTED] with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactivelyContent deleted Content addedVisualWikitext
Revision as of 13:24, 21 January 2025 editJoJan (talk | contribs)Autopatrolled, Administrators173,140 edits new  Latest revision as of 14:35, 21 January 2025 edit undoJoJan (talk | contribs)Autopatrolled, Administrators173,140 edits double entry 
(8 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Short description|Species of gastropod}} {{Short description|Species of gastropod}}
{{Speciesbox {{Speciesbox
| image = | image = Ammonicera japonica 001.jpg
| image_caption = | image_caption = Shell of ''Ammonicera japonica'' (holotype)
| taxon = Ammonicera japonica | taxon = Ammonicera japonica
| authority = Habe, 1972 | authority = Habe, 1972
Line 12: Line 12:


==Description== ==Description==
The major diameter of the shell is O.68 mm and minor diameter O.5mm. The major diameter of the shell is O.68 mm and minor diameter O.5 mm.


(Original description) The thin, yet solidly constructed shell is extremely small, measuring less than 1 mm in diameter when fully grown. Fresh specimens are dark brown, while dead shells are ashy white. The shell features 16 regularly arranged white radial streaks along the periphery and is planorboid and biconcave, resembling the freshwater pulmonate snail ]. (Original description) The thin, yet solidly constructed shell is extremely small, measuring less than 1 mm in diameter when fully grown. Fresh specimens are dark brown, while dead shells are ashy white. The shell features 16 regularly arranged white radial streaks along the periphery and is planorboid and biconcave, resembling the freshwater pulmonate snail ].


There are 3 to 3½ ]s, marked by deep sutures and constricted by regularly spaced annulations, with approximately 16 annulations present on the ]. The peripheral area is smooth, giving the shell an ]-like appearance. The ] is circular, with a continuous peristome. <ref>{{cite journal |last1=Habe |first1=T. |title=The Japan's smallest gastropod, Ammonicera japonica, sp. nov. |journal=Venus |date=1972 |volume=31 |issue=3 |pages=15-116 |url=https://www.jstage.jst.go.jp/article/venusjjm/31/3/31_KJ00004341439/_article/-char/en |access-date=21 January 2025}} {{source-attribution-CC-by-4.0}}</ref> The shell contains 3 to 3½ ]s. These are marked by deep sutures and constricted by regularly spaced annulations, with approximately 16 annulations present on the ]. The peripheral area is smooth, giving the shell an ]-like appearance. The ] is circular, with a continuous peristome. <ref>{{cite journal |last1=Habe |first1=T. |title=The Japan's smallest gastropod, Ammonicera japonica, sp. nov. |journal=Venus |date=1972 |volume=31 |issue=3 |pages=15-116 |url=https://www.jstage.jst.go.jp/article/venusjjm/31/3/31_KJ00004341439/_article/-char/en |access-date=21 January 2025}} {{source-attribution-CC BY 4.0}}</ref>

It forms a homogeneous group with '']'' and '']'', based don the presence of one strong groove on the ] and at least one axial sculpture on the ]. <ref name="Sartori"> {{cite journal |last1=Sartori, A.F. & Bieler, R. |title=Three new species of Ammonicera from the Eastern Pacific coast of North America, with redescriptions and comments on other species of Omalogyridae (Gastropoda, Heterobranchia). |journal=Zootaxa |date=2014 |volume=38 |issue=72 (1) |pages=8-10 |url=https://doi.org/10.11646/zootaxa.3872.1.1 |access-date=21 January 2025}}</ref>


==Distribution== ==Distribution==
This species occurs off ] and ]; also in the Indian Ocean off ]; in the Pacific off ]; off ] and off the ]. <ref name="Sartori" />
This species occurs off Japan.


==References== ==References==

Latest revision as of 14:35, 21 January 2025

Species of gastropod

Ammonicera japonica
Shell of Ammonicera japonica (holotype)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Family: Omalogyridae
Genus: Ammonicera
Species: A. japonica
Binomial name
Ammonicera japonica
Habe, 1972

Ammonicera japonica is a species of minute sea snail, a marine gastropod mollusc in the family Omalogyridae.

Description

The major diameter of the shell is O.68 mm and minor diameter O.5 mm.

(Original description) The thin, yet solidly constructed shell is extremely small, measuring less than 1 mm in diameter when fully grown. Fresh specimens are dark brown, while dead shells are ashy white. The shell features 16 regularly arranged white radial streaks along the periphery and is planorboid and biconcave, resembling the freshwater pulmonate snail Gyraulus.

The shell contains 3 to 3½ whorls. These are marked by deep sutures and constricted by regularly spaced annulations, with approximately 16 annulations present on the body whorl. The peripheral area is smooth, giving the shell an ammonite-like appearance. The aperture is circular, with a continuous peristome.

It forms a homogeneous group with Ammonicera nodicarinata and Ammonicera vangoethemi, based don the presence of one strong groove on the protoconch and at least one axial sculpture on the teleoconch.

Distribution

This species occurs off Japan and Korea; also in the Indian Ocean off Réunion; in the Pacific off Hawaii; off Papua New Guinea and off the United Arab Emirates.

References

  1. Ammonicera japonica Habe, 1972. 21 January 2025. Retrieved through: World Register of Marine Species.
  2. Habe, T. (1972). "The Japan's smallest gastropod, Ammonicera japonica, sp. nov". Venus. 31 (3): 15–116. Retrieved 21 January 2025. Public Domain This article incorporates text from this source, which is under a CC BY 4.0 license.
  3. ^ Sartori, A.F. & Bieler, R. (2014). "Three new species of Ammonicera from the Eastern Pacific coast of North America, with redescriptions and comments on other species of Omalogyridae (Gastropoda, Heterobranchia)". Zootaxa. 38 (72 (1)): 8–10. Retrieved 21 January 2025.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  • Raines, B.K. (2007). "New molluscan records from Easter Island, with the description of a new Ethminolia". Visaya. 2 (1): 70–88.


Taxon identifiers
Ammonicera japonica
Categories:
Ammonicera japonica: Difference between revisions Add topic