天螺屬

天螺屬（Diala）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
- 綴天螺 Diala bella A. Adams, 1868
- Diala exilis (Tryon, 1866)
- Diala lirulata Thiele, 1930
- Diala megapicalis Ponder & de Keyzer, 1992
- 台灣天螺 Diala nyussana (Smith, 1877)
- 光天螺 Diala planalba Laseron, 1956。
- 綠島天螺 Diala polymorpha (Smith, 1877)
- 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 Habe, 1960：即Diala semistriata (Philippi, 1849)
- 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 Adams A., 1861：即Diala semistriata (Philippi, 1849)
- 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

主要分布於台灣，常見於水深5-45米的細沙底質。

本物種見於台灣綠島。

## 基本資料

- 學名：Diala
- 說明：Diala suturalis
- 命名者：Adams, 1861
- 異名：Alaba (Diala) A. Adams, 1861、Laevitesta Laseron, 1950
- 模式種：Diala varia Adams A., 1861