Besides resembling a snail, what other creature's shape is often used to describe the elongated, tapering form of many snailfish?

Answer

A tadpole

The snailfish morphology is frequently compared to two entirely different creatures: a tadpole or a snail. The comparison to a tadpole relates to their elongated form tapering drastically to a very small tail.

Besides resembling a snail, what other creature's shape is often used to describe the elongated, tapering form of many snailfish?
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