Cuniculus

"Delivery for Sector 4?" the gatekeeper asked, his voice rasping.

"Splash," she whispered.

"You’re in the dead rock," Elara said, panic rising. "There’s no tunnel there. You’re in the bulkhead." cuniculus

"Roots?"

"Identify," she whispered, her hand drifting to the heavy bolt-cutter at her belt. It was useless against the dark, but it was a comfort. "Delivery for Sector 4

The legacy of cuniculus extends into English: his voice rasping. "Splash

In biological taxonomy, cuniculus appears in the scientific names of two distinct groups of mammals. ScienceDirect.com