Original name  
  Check ECoF  
  Current accepted name  
Yes
  Status  
Accepted name
  Status details  
senior synonym, original combination
  Status ref.  
  Etymology of generic noun  
  from ETYFish
entos (Gr.), within; sphenos (Gr.), wedge, referring to wedge-shaped tooth within mouth on tongue of E. tridentatus. (See ETYFish)
  Etymology of specific epithet  
  from ETYFish
In honor of Wilbur (“Bill”) I. Follett (1901-1992), Curator of Fishes, California Academy of Sciences, “friend, a collaborator in the studies of holarctic lampreys, and a distinguished scholar of the fishes of California” [authors incorrectly gave Follett’s name as “William”]. (See ETYFish)
  Link to references  
References using the name as accepted
  Link to other databases  
ITIS TSN : None | Catalogue of Life | ZooBank | WoRMS

Note: ETYFish and FishBase started a collaboration to complete the etymology for all valid names of fishes. For the current update, the following groups were completed: hagfishes (Myxini), lampreys (Petromyzonti), chimaeras (Holocephali), and sharks (Squalomorphi). It is a work in progress, so the two websites may not be synchronized.

Scharpf, C. The ETYFish Project, Fish Name Etymology Database. https://www.etyfish.org
Please, report here on etymology issues.