环带，生殖带某些环节动物蠕虫表皮的膨胀、含腺的鞍状带，例如蚯蚓，分泌一种粘性液体而在其卵上形成一层防护层。
A swollen glandular saddlelike region in the epidermis of certain annelid worms such as the earthworm that secretes a viscous fluid to form a cocoon for their eggs.
雌螈的产卵量为80粒左右，卵单生，外表缺乏粘性，往往成堆留在地面。
The egg-laying amount of a female salamander is 80 or so. The egg is solitary, lacks of viscosity, and often remains in pile in the ground.
雌螈的产卵量为80粒左右，卵单生，外表缺乏粘性，往往成堆留在地面。
The egg-laying amount of a female salamander is 80 or so. The egg is solitary, lacks of viscosity, and often remains in pile in the ground.
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