Antarctospira angusteplicata
{{Short description|Species of gastropod}}
{{Use dmy dates|date=November 2018}}
{{Speciesbox
| taxon = Antarctospira angusteplicata
| image = Antarctospira angusteplicata 001.jpg
| image_caption = Shell of Antarctospira angusteplicata (Specimen at the Smithsonian Institution)
| authority = (Strebel, 1905)
| synonyms =
- Antarctospira paragenota (Powell, 1951)
- Bela angusteplicata Strebel, 1905 (original combination)
- Leucosyrinx angusteplicata (Strebel, 1905)
- Leucosyrinx paragenota Powell, 1951
| display_parents = 3
}}
Antarctospira angusteplicata is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.MolluscaBase eds. (2020). MolluscaBase. Antarctospira angusteplicata (Strebel, 1905). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1329624 on 2020-03-28
Description
The length of the shell attains 21 mm.
(Original description in German) The shell is solid, white, and covered by a yellowish cuticle. The initial whorls of the protoconch possess a slightly inflated nucleus. Subsequent whorls initially diverge from the suture at a somewhat oblique, roof-like angle, then descend steeply, forming a blunt edge. The body whorl constricts below, culminating in a moderately long beak. The aperture is narrow, only slightly wider at its upper portion than the siphonal canal, which is recurved at the base. The columellar callus ascends almost vertically from the base before bending at a blunt angle towards the suture. A diagonal, ridge-like elevation extends across the callus, sloping down to the steep columellar base.
The sculpture consists of fine growth lines and narrow, low, yet sharply defined, folds. These folds appear compressed, often comprising two or three such folds pushed together. They are short, becoming weaker in the sinus area and, on the body whorl, barely extending beyond the midpoint. Near the aperture, these folds, though diminished, reach the base. Closely spaced, somewhat wavy spiral grooves are also present. These grooves become more closely set towards the base, where the interspaces appear as flatly arched rings. Approximately 40 such grooves are present on the body whorl. [https://archive.org/details/beitrgezurkenn00stre Strebel H. (1905). Beiträge zur Kenntnis der Molluskenfauna der Magelhaen-Provinz. No. 3. Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Tiere. 22: 575-666, pls 21-24] {{source-attribution}}
Distribution
This marine species occurs off the Falkland Islands and the Strait Of Magellan, Tierra del Fuego, Argentina, South Atlantic Ocean
References
{{Reflist}}
External links
- [https://biodiversitylibrary.org/page/5632211 Powell A. W. B. (1951). Antarctic and Subantarctic Mollusca: Pelecypoda and Gastropoda. Discovery Reports, 26: 47-196, pl. 5-10]
- [https://dx.doi.org/10.1080/13235818.2015.1128523 Kantor Y.I., Harasewych M.G. & Puillandre N. (2016). A critical review of Antarctic Conoidea (Neogastropoda). Molluscan Research. 36(3): 153-206]
- {{cite journal | last1 = Tucker | first1 = J.K. | year = 2004 | title = Catalog of recent and fossil turrids (Mollusca: Gastropoda) | url = http://www.mapress.com/zootaxa/2004f/z00682f.pdf | journal = Zootaxa | volume = 682 | pages = 1–1295 | doi = 10.11646/zootaxa.682.1.1 }}
- [http://www.gastropods.com/4/Shell_43454.shtml Gastropods.com: Leucosyrinx paragenota]
- [http://www.gastropods.com/2/Shell_23912.shtml Gastropods.com: Leucosyrinx angusteplicata]
{{Taxonbar|from=Q63731270|from2=Q3721178}}
{{DEFAULTSORT:Antarctospira Angusteplicata}}