Shell base
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Class
Gastropoda 
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Class_C
腹足綱 
Order
Archaeogastropoda 
Order_C
原始腹足目 
Family
Pleurotomariidae 
Family_C
翁戎螺科 
Genus_C
翁戎螺屬 
Scientific Name
Entemnotrochus rumphii
Nomenclator
(Schepman, 1879) 
Chinese Name
龍宮翁戎螺  China Name
Chinese Common Name
 
Synonym
urashima Shikama & Oishi, 1977 
English Common Name
 
Area
台灣
Taiwan
Distribution
台灣、日本、印尼沿岸
Habitat
深海
Shell Character
龍宮翁戒螺出現於古生代寒武紀,距今約五億七千萬年至四億九千萬年前; 繁盛於中生代,而由新生代開始漸趨絕跡。在民國57年開始陸續有漁船在東沙群島、釣魚台、台灣海峽撈獲活體,故可稱之為「活化石」。其主要特徵為殼口有一道裂縫,罅裂達殼底周圍之一半。口蓋比殼口大,殼呈黃色帶火焰色彩,直徑約10-23公分。
Reference
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