Because it does not move outside its tube, this worm does not have any specialized appendages for movement or swimming.
(Cia.gov)* Project Oxcart: CIA Report* FOIA documents on OXCART (Declassified 21 January 2008)* Differences between the A-12 and SR-71* Blackbird Spotting maps the location of every existing Blackbird, with aerial photos from Google Maps* Photographs and disposition of the "Habu" aircraft at habu.org* The U-2's Intended Successor: Project Oxcart (Chapter 6 of "The CIA and Overhead Reconnaissance", by Pedlow & Welzenbach)* USAF Aircraft Serial Numbers for 1960, including all A-12s, YF-12As and M-21s* "The Real X-Jet", "Air & Space magazine," March 1999* Secret A-12 Spy Plane Officially Unveiled at CIA's Headquarters