天螺属

天螺属（學名：）是一個海螺的屬，屬於天螺科的海洋腹足綱軟體動物。

物種
下列部分本屬物種：
 麻天螺 Diala albugo (Watson, 1886)
 Diala almo Bartsch, 1915
 缀天螺 Diala bella 
 Diala exilis (Tryon, 1866)
 Diala lirulata Thiele, 1930
 Diala megapicalis 
 台灣天螺 Diala nyussana 
 光天螺 Diala planalba 。
 綠島天螺 Diala polymorpha 
 精天螺 Diala semistriata (Philippi, 1849) - type species as Diala varia Adams A., 1861
 Diala stephensae (Baker, Hanna & Strong, 1930)
 Diala sulcifera (A. Adams, 1862) - synonym: Diala flammea (Pease, 1868)
 Diala suturalis (A. Adams, 1863) - synonym: Diala lauta (Adams)
異名
 Diala acuta Carpenter, 1864: synonym of Pseudodiala acuta (Carpenter, 1864)
 Diala africana Bartsch, 1915: synonym of Diala almo Bartsch, 1915
 Diala basispiralis (Chapman-Smith & Grant-Mackie, 1971): synonym of Diala semistriata (Philippi, 1849)
 Diala cacuminata Laseron, 1956: synonym of Diala semistriata (Philippi, 1849)
 Diala capensis G. B. Sowerby III, 1889: synonym of Alaba pinnae (Krauss, 1848)
 Diala conica Turton, 1932: synonym of Diala semistriata (Philippi, 1849)
 Diala cornea A. Adams, 1861: synonym of Alaba cornea (A. Adams, 1861)
 Diala diffilata Laseron, 1956: synonym of Alaba diffilata (Laseron, 1956)
 Diala electrina Carpenter, 1864: synonym of Lirobarleeia Ponder, 1983 
 Diala flammea (Pease, 1868: synonym of Diala sulcifera (A. Adams, 1862)
 Diala fragilis Thiele, 1930: synonym of Alaba fragilis (Thiele, 1930)
 Diala fuscopicta E. A. Smith, 1890: synonym of Barleeia fuscopicta (E. A. Smith, 1890)
 Diala hartmeyeri Thiele, 1930: synonym of Alaba hartmeyeri (Thiele, 1930)
 Diala infrasulcata G.B. Sowerby III, 1892 : synonym of Diala semistriata (Philippi, 1849)
 Diala lauta (Adams, 1862): synonym of Diala suturalis (A. Adams, 1863)
 Diala leithii (E. A. Smith, 1876): synonym of Mainwaringia leithii (E. A. Smith, 1876)
 Diala lirata Laseron, 1950: synonym of Diffalaba opiniosa Iredale, 1936
 Diala ludens Melvill & Standen, 1895: synonym of Diala albugo (Watson, 1886)
 Diala macula Nevill, 1885: synonym of Diala varia A. Adams, 1861: synonym of Diala semistriata (Philippi, 1849)
 Diala marmorea Carpenter, 1864: synonym of Pseudodiala acuta (Carpenter, 1864)
 Diala pinnae (Krauss, 1848): synonym of Alaba pinnae (Krauss, 1848)
 Diala planalba Laseron, 1956: synonym of Diala semistriata (Philippi, 1849)
 Diala polita Preston, 1905: synonym of Diala semistriata (Philippi, 1849)
 Diala simplex E. A. Smith, 1875: synonym of Barleeia simplex (E. A. Smith, 1875)
 精天螺 Diala stricta ：即Diala semistriata 
 Diala tesselata Tenison-Woods, 1876: synonym of Alaba monile A. Adams, 1862
 Diala translucida Hedley, 1905: synonym of Styliferina translucida (Hedley, 1905)
 Diala trilirata Melvill, 1906: synonym of Diala semistriata (Philippi, 1849)
 天螺 Diala varia ：即Diala semistriata 
 Diala vestigia Laseron, 1956: synonym of Diala semistriata (Philippi, 1849)
 Diala vitrea G. B. Sowerby III, 1915: synonym of Diffalaba vitrea (G. B. Sowerby III, 1915)
 Diala watsoni Laseron, 1956: synonym of Diala semistriata (Philippi, 1849)

型態描述
如同其他同屬天螺科的物種，本屬物種的螺殻亦屬小型，呈高圓錐形。殼口單純，外唇不肥厚，也不形成水管溝。胚螺通常平滑。口蓋為少旋木葉型。足的後部有蓋葉形的膜狀延伸。

分佈
主要分布于台湾，常见于水深5-45米的细沙底质。
本物種見於台灣綠島。

参考文献

外部連結