【唐冠螺科】
唐冠螺科（学名：Cassidae）page1=171，亦作冠螺科，是一个腹足纲软体动物的科，其物种为中型到大型、甚至很大型的海螺WoRMS_22999。旧属中腹足目及异腹足目，今属玉黍螺类支序鹑螺总科Bouchet 2005。
本科现时有约60个物种，例如：万宝螺（Cypraecassis rufa）。
==命名==
若按唐冠螺属的学名来命名，本科的学名应作「Cassididae」，但这样就会跟另一种甲虫分类龟金花虫科
的学名Cassididae Stephens, 1831 (基于Cassida Linnaeus, 1758，金花虫科物种，但现时已降格成为龟金花虫亚科）相冲。所以ICZN根据Opinion 1023 (1974, Bulletin of Zoological Nomenclature 31: 127-129)，接受了现时的学名，以避免重复命名的出现WoRMS_22999。
==分布==
本科物种分布于热带海域及温带的潮间带，水深可达100米。日间会埋在海底的沙里，到晚上才出来活动。
==形态特征==
本物种螺壳的手性均为右旋。体型通常很大。螺厣长圆形，薄而且有尖刺，能完全覆盖其长长的壳口。水管沟直或微弯。壳口外唇较厚，内里有齿。
==解剖==
本科物种的外套膜很大，腹足大而且厚肉。头部有可伸缩的长鼻，可协助捕食。眼睛在一对触角的基部。
==食性==
本科物种以棘皮动物（特别是海胆）为食：冠螺科物种的头部有长长的口器，连接两个大大的长鼻腺，可分泌出一种含丰富硫酸的分泌液。冠螺会先用其腹足夹紧海胆，然后再分泌酸液在其外壳融解出一个洞，再从这个洞伸进齿舌去刮食海胆的肉Hughes 1981。
==分类==
在布歇特和洛克罗伊的腹足类分类 (2005年)，作者依从Riedel (1995)，唐冠螺科仍然被列作鹑螺科（Tonnidae Suter, 1913 (1825)）之下的一个亚科（Cassinae Latreille, 1825）Riedel 1995，直到Beu (2008)在他的著作《Revision of the deep-water Cassidae》才将本分类提升到科级层次Dance 2008。
===属===
本科包括下列各属WoRMS_22999：
* 唐冠螺亚科 Cassinae Latreille, 1825 == 卵螺亚科 Oocorythinae P. Fischer, 1885
**唐冠螺属 Cassis Scopoli, 1777page1=79
**万宝螺属 Cypraecassis Stutchbury, 1837
**Dalium  Dall, 1889
**Eucorys Beu, 2008Beu 2008
**粗皮鬘螺属 Galeodea Link, 1807 == 粗皮卵螺属 Galeoocorys Kuroda & Habe, 1957
** Haydenia Gabb, 1864 †
**Microsconsia Beu, 2008Beu 2008
**卵螺属 Oocorys P. Fischer, 1884
**Sconsia Gray, 1847
* 鬘螺亚科 Phaliinae Beu, 1981
**Casmaria H. Adams and A. Adams, 1853
**Echinophoria Sacco, 1890
**鬘螺属 Phalium Link, 1807  - bonnet shells
**Semicassis Mörch, 1852
===异名===
以下各属被认为是异名：
* Bathygalea Woodring & Olsson, 1957: synonym of  Echinophoria Sacco, 1890
* Benthodolium Verrill & Smith in Verrill, 1884: synonym of Oocorys P. Fischer, 1884
* Bezoardica Schumacher, 1817: synonym of Phalium Link, 1807
* Bezoardicella Habe, 1961: synonym of Phalium Link, 1807
* Cassidaria Lamarck, 1816: synonym of Galeodea Link, 1807
* Cassidea Bruguière, 1789: synonym of Cassis Scopoli, 1777
* Echinora Schumacher, 1817: synonym of Galeodea Link, 1807
* Euspinacassis Finlay, 1926: synonym of Echinophoria Sacco, 1890
* Hadroocorys Quinn, 1980: synonym of Oocorys P. Fischer, 1884
* Morio Montfort, 1810: synonym of Galeodea Link, 1807
* Taieria Finlay & Marwick, 1937: synonym of Galeodea Link, 1807
* † Trachydolium Howe, 1926: synonym of Echinophoria Sacco, 1890
* Xenogalea Iredale, 1927: synonym of Semicassis Mörch, 1852
* Xenophalium Iredale, 1927: synonym of Semicassis Mörch, 1852
==图库==
Image:Casmaria erinaceus forma vibex 01.jpg|Casmaria erinaceus
Image:Cassis cornuta 01.jpg|Cassis cornuta
Image:Cypraecassis rufa 01.JPG|Cypraecassis rufa
Image:Galeodea rugosa 002.jpg|Galeodea rugosa
Image:Phalium bandatum bandatum 001.jpg|Phalium bandatum
Image:Semicassis granulata granulata 01.JPG|Semicassis granulata
==人类使用==
Some helmet shells are carved into cameos, starting in Italy in 1820.
*The king helmet Cassis tuberosa was the first species to be made into cameos.
* The black helmet Cassis madagascariensis, also known as Cassis cameo, has a dark brown or a claret-coloured shell layer under a yellowish outer layer.  This gives it an onyx appearance and makes it one of the most useful shells for cameos.
* The red helmet Cypraecassis rufa gives a sardonyx-like appearance because it has sard-coloured bands under its pale outer coating.
* The horned helmet Cassis cornuta produces a white figure on an orange background. It is also used as a trumpet by native Filipinos.
==参考文献==
* Abbott, R.T. (1968). The Helmet Shells of the World (Cassidae) Part 1. Indo-Pacific Mollusca 2(9): 7-201
* Kreipl K. 1997. Recent Cassidae. Christa Hemmen, Wiesbaden, 151 p
==外部连结==
* http://www.biolib.cz/en/taxon/id402143/date=20200608022945  accessed 8 January 2010
*  Checklist of Mollusca
*  ITIS
* Steyn, D.G. & Lussi, M. 2005. Offshore Shells of Southern Africa 0-620-33607-2
* http://www.gastropods.com/Taxon_pages/Family_CASSIDAE.shtml#CASSIDAECASSINAEdate=20200608022947
* http://www.taxonomy.nl/Main/Classification/987895.htmfix-attempted=yes