| 释义 |
snail dartern.（名词）- A small snail-eating darter(Percina tanasi) that formerly was found only in the Little Tennessee River. It was thought to have become extinct after construction of a dam, but later was discovered in several other Tennessee streams. 食蜗镖鲈：一种小型的以食蜗牛为主的镖鲈（食蜗镖鲈） ，过去只在美国小田纳西河有发现。建起水库后它被认为绝迹了，但后来又在田纳西河其它支流里被发现
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