{{short description|Species of sea snail}} {{Use dmy dates|date=July 2020}} {{Speciesbox | taxon = Zemacies excelsa | image=Zemacies excelsa (MNHN-IM-2000-2939).jpeg | image_caption = | authority = Sysoev & Bouchet, 2001 | synonyms_ref = <ref name="WoRMS" /> | synonyms = | display_parents = 3 }}

'''''Zemacies excelsa''''' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.<ref name="WoRMS">{{WRMS species|435247|''Zemacies excelsa'' Sysoev & Bouchet, 2001||15 August 2011}}</ref>

==Description== The shell grows to a length of 55&nbsp;mm. Individuals can grow to 58.2mm and can have a wet body mass of 24.5g.<ref name=":0">{{Cite web |title=Zemacies excelsa Sysoev & Bouchet 2001 - Encyclopedia of Life |url=https://eol.org/pages/46456904 |access-date=2022-03-23 |website=eol.org}}</ref> Dead ''Zemacies excelsa'' form shallow marine sediments. Unlike most of its close relatives in the Conoidea superfamily, Z. excelsa lacks a radula and venom apparatus.<ref>{{Cite journal |last=Fedosov |first=A. |last2=Kantor |first2=Y. |date=2007-11-02 |title=Toxoglossan gastropods of the subfamily Crassispirinae (Turridae) lacking a radula, and a discussion of the status of the subfamily Zemaciinae |url=https://academic.oup.com/mollus/article-lookup/doi/10.1093/mollus/eym042 |journal=Journal of Molluscan Studies |language=en |volume=74 |issue=1 |pages=27–35 |doi=10.1093/mollus/eym042 |issn=0260-1230}}</ref>

''Zemacies excelsa'' has a dextrally coiled body symmetry.<ref name=":0" /> ==Distribution== This species occurs in the Pacific Ocean off New Caledonia and New Zealand. Most are found approximately 200-300 meters deep in the ocean, with some down to 600-700 meters deep.<ref>{{Cite web |title=Benthic species from the tropical Pacific surrounding New Caledonia |url=https://ipt.vliz.be/eurobis/resource?r=new_caledonia |access-date=2025-11-15 |website=ipt.vliz.be |language=en}}</ref>

==References== {{Reflist}} * Sysoev, A. & Bouchet, P., 2001. ''New and uncommon turriform gastropods (Gastropoda: Conoidea) from the south-west Pacific''. Mémoires du Muséum national d'Histoire naturelle 185: 271–320

==External links== * {{Gastropods.com|key=2|id=12422|title=''Zemacies excelsa''|access-date=15 August 2011}} * [https://science.mnhn.fr/institution/mnhn/collection/im/item/2000-2939?listIndex=1&listCount=8 MNHN, Paris: ''Zemacies excelsa'' (holotype)] {{Webarchive|url=https://web.archive.org/web/20190117122256/https://science.mnhn.fr/institution/mnhn/collection/im/item/2000-2939?listIndex=1&listCount=8 |date=17 January 2019 }}

{{Taxonbar|from=Q3282217}} {{Commons category}}

{{DEFAULTSORT:Zemacies Excelsa}} excelsa Category:Gastropods described in 2001 Category:Molluscs of the Pacific Ocean Category:Taxa named by Philippe Bouchet

{{Borsoniidae-stub}}