Shell base
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Class
Gastropoda 
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Class_C
腹足綱 
Order
Mesogastropoda 
Order_C
中腹足目 
Family
Strombidae 
Family_C
鳳凰螺科 
Genus_C
蜘蛛螺屬 
Scientific Name
Lambis chiragra
Nomenclator
(Linnaeus, 1758) 
Chinese Name
水字螺  China Name
Chinese Common Name
 
Synonym
 
English Common Name
 
Area
台灣、中國、南韓、印尼、馬來西亞
Taiwan
Distribution
世界分佈:日本以南之印度太平洋。台灣分佈:北濱、東北角、恆春、台東、澎湖、蘭嶼、綠島、小琉球及南海海域。南韓、海南、西沙、印尼、馬來西亞。
Habitat
生活於岩礁地,砂質底。低潮線下
West Malaysia East coast: Pulau Perhentian, Mersing; West Malaysia West coast: Phuket, Pulau Sembilan
Shell Character
殼形:殼質厚實,呈紡錘形,有五隻長而厚、反曲且中空的足,再加上由右向左伸展的前水管,狀似水字。在第四、五隻足間有很顯明的stromboid notch 。背部有4-5條螺肋,上有瘤。殼口狹小,外唇和軸唇有齒狀襞。殼色:淡黃色底,棕色(或黃棕色)條紋及斑點,殼口和軸唇為粉紅色(或紅色)摻雜白色斑塊,殼口邊緣常為棕色。大小:族群間變異大,且雌性(100-260mm)較雄性(95-105mm)大。(114.9*67.5mm)
Reference
000008000009000273100047100057100059100123200001200002200006200007200008200009200012200013200024200117200123720090224017420090220130_01720090224018720090224020_02320091230003200142120100608002_03320110119003000008000009000273100047100057100059100123200001200002200006200007200008200009200012200013200024200117200123720090224017420090220130_01720090224018720090224020_02320091230003200142120100608002_03320110119003
Remark
 數量少,雌性在背部中央有一個大瘤。


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