珠螺
珠螺（學名：_ Lunella coronata _，臺灣話：tsu-lê）， 臺灣澎湖當地人講是大頭仔（臺灣話：tuā-thâu-á）、大頭螺（臺灣話：tuā-thâu-lê-á）， 是鐘螺目睭仁螺科珠螺屬的一个腹足綱軟體動物種。
形態描述
The shell grows to a length of 四 cm , with conspicuous flattened , cup-like scales interspersed by small , regular rows of nodules . The colour of the shell is pale to greenish , flecked with purplish-brown markings ( often encrusted with light pink coralline algae ) . The 螺漠 is smooth to faintly granular with pale green centre . ( Richmond , 一千九百九十七 ) .
The solid , imperforate shell has a depressed-turbinate shape with a diameter greater than the altitude . It is covered with an irregular spiral series of nodules and granules , of which the subsutural series and two on the median portion of the body whorl are more prominent . The spire is depressed , dome-shaped with an apex that is frequently eroded and red . The shell contains 四 to 五 whorls , the last very large . The large 殼口 is round and iridescent within . The wide columella is flattened and excavated , deflexed recurved and somewhat channelled at its base , The inside of the 螺漠 is flat , greenish and golden , iridescent , with about 五–六 whorls and a subcentral nucleus . Its outside is convex , greenish , sparsely granulate all over .
The species is subject to a wide variation . The passage from the strongly tuberculate forms into those in which the transverse striae simply cut the lirae into diamonds or granules is made by imperceptible degrees .
分佈
這个海洋生物分佈佇非洲的東南部的紅海岸、馬斯克林群島佮規个印度洋-太平洋海域，包括中國大陸、臺灣、香港。
棲息地
定生湠佇咧沿海岩礫抑是岩礁的潮間帶及抑是潮池，以岩礁頂懸的海草生物為食
參考文獻
- Dautzenberg , Ph . ( 一千九百二十九 ) . _ Contribution à l'étude de la faune de Madagascar : Mollusca marina testacea . Faune des colonies françaises , III ( fasc . 四 ) . _ Société d'Editions géographiques , maritimes et coloniales : Paris . 三百二十一–六百三十六 , plates IV-VII pp .
- Herbert D . G . ( 一千九百八十八 ) . _ Studies on Priotrochus obscurus and the systematics position of Priotrochus ( Mollusca : Gastropoda : Trochidae ) . _ Journal of zoology 兩百十四 : 五百六十一–兩百六十八 .
- Branch , G . M . et al . _ Two Oceans _ . Cate Town & Johannesburg : David Philip . 一千九百九十四 [二千空二十二孵十一孵二十六] .（原始內容存檔佇兩千空二十二抹三鋪十九）（英語）. 引文格式的一維護：顯式使用等標籤 ( link )
- Alf A . & Kreipl K . ( 兩千空三 ) . A Conchological Iconography : The Family Turbinidae , Subfamily Turbininae , Genus Turbo . Conchbooks , Hackenheim Germany .
- Nakano T . , Takashashi K . & Ozawa T . ( 兩千空七 ) _ Description of an endangered new species of Lunella ( Gastropoda : Turbinidae ) from the Ogasawara Islands _ , Japan . Venus 六十六 ( 一–二 ) : 一–十 .
外部連結
- _ Lunella ( Lunella ) coronatus _ . Hardy's Internet Guide to Marine Gastropods . [十六 January 二千空一十九]（英語）.