無臍玉螺屬

**乳玉螺屬**:148（學名:_Polinices_），又名**無臍玉螺屬**，是玉黍螺類支序海螺的一個屬。舊屬玉螺亞科，現時獨立出來成為無臍玉螺亞科。

## 物種

本屬連同異名有超過 150 個物種。截至 2018 年 4 月 27 日 (2018-04-27)，WoRMS 紀錄本屬的物種包括下列 56 個物種：

* 扁球玉螺 _Polinices albumen_ (Linnaeus, 1758):149－又名蛋白乳玉螺。產於台灣海峽，淺海底。
* Species Polinices alveatus (Troschel, 1852)
* Species Polinices amiculatus (Philippi, 1849)
* 桔色乳玉螺 _Polinices aurantius_ (Röding, 1798)：又名黃金玉螺。
* 雙線玉螺 _Polinices bifasciatus_ Gray in Griffith & Pidgeon, 1833)
* 大白乳玉螺 _Polinices candidissimus_ (Le Guillou, 1842):157
* Polinices chattonensis (Marwick, 1924) †
* Polinices citrinus (Philippi, 1851)
* Polinices cleistopsila Barnard, 1963
* Polinices constanti Huelsken & Hollmann, 2012
* Polinices cora (d'Orbigny, 1840)
* Polinices cumingianus (Récluz, 1844)
* 迸體乳玉螺 _Polinices effusus_ (Swainson, 1840):153
* Species Polinices fallai (Fletcher, 1938) †
* 臍孔白玉螺 _Polinices flemingianus_ (Récluz, 1844)：又名臍穴乳玉螺:159、臍孔玉螺。
* 棕色玉螺 _Polinices fortunei_ Reeve, 1865－產於台灣北部海域，淺海泥底。
* Polinices grunerianus (Philippi, 1852)
* Polinices hacketti Marincovich, 1975
* 棕色玉螺 _Polinices hepaticus_ (Röding, 1798)
* Polinices huttoni Ihering, 1907 †
* Polinices immaculatus (Totten, 1835)
* Polinices intemeratus (Philippi, 1853)
* Polinices intracrassus Finlay, 1924 †
* Polinices jukesii (Reeve, 1855)
* Polinices lacteus (Guilding, 1834)
* Polinices laxus (Finlay, 1926) †
* Polinices leptaleus (R. B. Watson, 1881)
* Polinices limi Pilsbry, 1931
* Polinices lobatus (Marwick, 1924) †
* Polinices mackayi Marwick, 1931 †
* 褐帶玉螺 _Polinices mammatus_ (Roeding, 1798)－產於台灣海峽及台灣北部海域，淺海沙底。
* 梨形乳玉螺 _Polinices mammilla_ (Linnaeus, 1758):157
* 白玉螺 _Polinices mammilla_ (Linnaeus, 1758)：於台灣海峽及台灣北部海域，淺海沙底。
* Species Polinices mediopacificus Kosuge, 1979
* 黑唇玉螺 _Polinices melanostomus_ (Gmelin, 1791)－又名黑口乳玉螺。產於台灣北部及西南部，淺海沙底。
* Polinices mellosus (Hedley, 1924)
* Polinices mucronatus (Marwick, 1924) †
* Polinices oneroaensis Powell & Bartrum, 1929 †
* Polinices otaioensis Marwick, 1960 †
* Polinices otis (Broderip & G. B. Sowerby I, 1829)
* 包氏玉螺 _Polinices powisiana_ (Recluz, 1844)－產於台灣海峽及台灣北部海域，淺海沙底。
* Polinices paciae Bozzetti, 1997
* Polinices panamaensis (Récluz, 1844)
* Polinices parki Finlay & Marwick, 1937 †
* Polinices parvulus Bozzetti, 2010
* Polinices perspicuus (Récluz, 1850)
* 包氏乳玉螺 _Polinices peselephanti_ (Link, 1807):154
* Polinices powisianus (Récluz, 1844)
* Polinices propeovatus (Marwick, 1924) †
* Polinices psilus (R. B. Watson, 1886)
* Polinices putealis Garrard, 1961
* 胖玉螺 Polinices reiniana Dunker, 1877－產於台灣北部海域，淺海底。
* 白鼠玉螺 Polinices sebae (Recluz, 1844)－又名桑巴乳玉螺。產地未記錄（？）。
* 相模乳玉螺 _Polinices sagamiensis_ Pilsbry, 1904:153：又名相模灣玉螺
* Polinices sagenus Suter, 1917 †
* 花帶玉螺 Polinices simiae (Deshayes, 1838)：產於台灣海峽，淺海沙底。
* Polinices tawhitirahia Powell, 1965
* Polinices uber (Valenciennes, 1832)
* Polinices uberinus (d'Orbigny, 1842)
* Polinices unisulcatus (Marwick, 1924) †
* Polinices vavaosi (Reeve, 1855)
* 絹帶乳玉螺 _Polinices vestitus_ Kuroda, 1961:151
* Polinices waipaensis (Marwick, 1924) †
* Polinices waipipiensis (Marwick, 1924) †

以下物種已不再屬於本屬：

* 大玉螺 _Polinices didyma_ (Röding)
* 花帶玉螺 _Polinices simiae_ (Deshayes)
* 白乳玉螺 _Polinices tumidius_

## 參考文獻

* _Polinices_. _ITIS_.
* Powell A. W. B. (1979), _New Zealand Mollusca_, William Collins Publishers Ltd, 紐西蘭奧克蘭 ISBN 0-00-216906-1