WoRMS taxon details
original description
Spengel J (1907) Studien uber die enteropneusten der Siboga-expedition nebst
beobachtungen an verwandten arten.: University of California Libraries. 400 p. [details]
basis of record
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
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