Emydocephalus ijimae

眼鏡蛇科, 海蛇亞科

85 cm

綠島 及 蘭嶼 周圍

中國，台灣，菲律賓，日本 (琉球群島)，印度尼西亞，菲律賓及摩鹿加群島，北至日本，南至薩摩亞群島的西太平洋地區。

Small snake; total length up to 85 cm. There are 15-19 (17-19 at mid-body) rows of scales, which are smooth and imbricated, and there is a row of large hexagonal scales along the vertebral line. Head is small, cuboidal, and not distinct from neck; body is moderately stout and highly compressed laterally; tail is laterally compressed, sides with vertically elongated scales. Nostril (with a lid) faces upward. Eye is medium-sized. Fangs are degenerated. There are 2 prefrontals and no internasals or loreals. Head is black and marked with a cross band of yellow to orange anterior to eyes, extending backward and downward to the base of jaw. Body and tail are yellow to orange, encircled by black, wave-edged bands; the black band is slightly broader than or similar to the yellow-orange one in width. Anal scale is divided and subcaudals are paired.

牠們唯一的食物來源為魚卵：「牠們利用硬化的吻部鱗片將魚卵由岩石上刮起，並利用鼻尖的尖刺挖起魚卵。牠們的顎部肌肉組織是很獨特的，毒牙較小，大概是由於他們需要利用吸力才能將魚卵吸入嘴裡。」　(資料來源)

ijimae = 為紀念日本東京大學理科飯島教授而命名。