芒果视频

外形特征

灰藍扁尾海蛇雄性長度87.5厘米，雌性長度142厘米。

灰(hui)(hui)藍扁(bian)尾海(hai)蛇(she)背(bei)部(bu)(bu)(bu)多以藍色(se)及(ji)灰(hui)(hui)色(se)為(wei)(wei)(wei)主(zhu)，腹部(bu)(bu)(bu)則(ze)以黃(huang)色(se)為(wei)(wei)(wei)主(zhu)，身(shen)上(shang)滿布(bu)(bu)黑色(se)的橫向條紋。唇(chun)部(bu)(bu)(bu)呈黃(huang)色(se)，頭部(bu)(bu)(bu)則(ze)主(zhu)要(yao)為(wei)(wei)(wei)黑色(se)。灰(hui)(hui)藍扁(bian)尾海(hai)蛇(she)的腹部(bu)(bu)(bu)扁(bian)平寬大(da)，鼻端(duan)及(ji)吻部(bu)(bu)(bu)同(tong)樣扁(bian)平，吻鱗(lin)為(wei)(wei)(wei)單片(pian)(pian)(pian)(pian)(pian)大(da)鱗(lin)；身(shen)上(shang)有(you)(you)21至(zhi)(zhi)25排不規(gui)則(ze)分布(bu)(bu)的鱗(lin)片(pian)(pian)(pian)(pian)(pian)。其身(shen)體主(zhu)要(yao)呈稍微被壓扁(bian)的近(jin)管狀的形狀，吻部(bu)(bu)(bu)高翹，前額(e)有(you)(you)一片(pian)(pian)(pian)(pian)(pian)大(da)鱗(lin)片(pian)(pian)(pian)(pian)(pian)（亦有(you)(you)部(bu)(bu)(bu)分蛇(she)類(lei)可能沒有(you)(you)這塊(kuai)鱗(lin)片(pian)(pian)(pian)(pian)(pian)）。有(you)(you)一片(pian)(pian)(pian)(pian)(pian)眶前鱗(lin)及(ji)兩片(pian)(pian)(pian)(pian)(pian)眶后鱗(lin)，7至(zhi)(zhi)8片(pian)(pian)(pian)(pian)(pian)上(shang)唇(chun)鱗(lin)，第三至(zhi)(zhi)四(si)片(pian)(pian)(pian)(pian)(pian)上(shang)唇(chun)鱗(lin)貼近(jin)雙眼；有(you)(you)五片(pian)(pian)(pian)(pian)(pian)下唇(chun)鱗(lin)，接觸頦部(bu)(bu)(bu)。腹部(bu)(bu)(bu)有(you)(you)213至(zhi)(zhi)245片(pian)(pian)(pian)(pian)(pian)鱗(lin)片(pian)(pian)(pian)(pian)(pian)，雄蛇(she)有(you)(you)37至(zhi)(zhi)47片(pian)(pian)(pian)(pian)(pian)尾鱗(lin)，雌蛇(she)則(ze)有(you)(you)29至(zhi)(zhi)35片(pian)(pian)(pian)(pian)(pian)尾鱗(lin)。

生活習性

灰藍(lan)扁尾海蛇棲(qi)息于(yu)海洋(yang)之中，水(shui)深不超過(guo)10米(mi)，多于(yu)夜(ye)間(jian)出沒(mei)沿岸沙(sha)灘、巖(yan)礁(jiao)間(jian)。日(ri)間(jian)時候，它們多躲藏于(yu)海岸邊的(de)巖(yan)縫間(jian)休眠。以海蛇科而言，灰藍(lan)扁尾海蛇擁(yong)有較(jiao)強的(de)陸行本領，即使離海有數十(shi)米(mi)之遙，仍有可(ke)能(neng)找到(dao)他們的(de)蹤影。捕食方面以一般魚類為(wei)主。

灰藍扁尾(wei)海(hai)蛇擁(yong)有(you)強烈的(de)神經(jing)毒(du)素，但由于它們的(de)口部細小，攻擊性較低，因此(ci)對人(ren)類(lei)的(de)威脅并(bing)不特(te)別嚴(yan)重(zhong)。

生長繁殖

灰藍(lan)扁尾海蛇(she)屬卵(luan)生蛇(she)類，全(quan)年可繁殖(zhi)，雌蛇(she)每年均于海岸巖(yan)石(shi)間產卵(luan)，每次約能誕下4-20枚蛇(she)卵(luan)。

分布范圍

灰藍扁尾海蛇主要分布(bu)于印度洋至太(tai)平洋一(yi)帶(dai)的海域，孟加(jia)拉灣到馬來半島(dao)沿(yan)海、巴布(bu)亞新(xin)幾內亞、澳大利亞、菲律賓、斐濟、湯加(jia)、中國南部、日(ri)本(ben)沿(yan)海以(yi)及(ji)臺(tai)灣沿(yan)海等地。