[unassigned] Enteropneusta (basis of record)
Balanoglossus Delle Chiaje, 1829 (basis of record)
Balanoglossus clavigerus Delle Chiaje, 1829 (basis of record)
Glandiceps Spengel, 1891 (basis of record)
Glandiceps talaboti (Marion, 1876) (basis of record)
Glossobalanus Spengel, 1901 (basis of record)
Glossobalanus elongatus Spengel, 1904 (basis of record)
Glossobalanus marginatus Meek, 1922 (basis of record)
Glossobalanus minutus (Kowalevsky, 1866) (basis of record)
Glossobalanus sarniensis (Koehler, 1886) (basis of record)
Harrimania Ritter, 1900 (basis of record)
Harrimania kupfferi (von Willemoes-Suhm, 1871) (basis of record)
Harrimaniidae Spengel, 1901 (basis of record)
Planctosphaera (basis of record)
Planctosphaera pelagica Spengel, 1932 (basis of record)
Protoglossus van der Horst, 1935 (basis of record)
Protoglossus koehleri Caullery & Mesnil, 1900 (basis of record)
Ptychoderidae Spengel, 1893 (basis of record)
Rhabdopleura compacta Hincks, 1880 (basis of record)
Rhabdopleura normani Allman, 1869 (basis of record)
Saccoglossus Schimkéwitch, 1892 (basis of record)
Saccoglossus horsti Brambell & Goodhart, 1941 (basis of record)
Saccoglossus kowalevskii (Agassiz, 1873) (basis of record)
Saccoglossus mereschkowskii (Wagner, 1885) (basis of record)
Saccoglossus pygmaeus Hinrichs & Jacobi, 1938 accepted as Mesoglossus pygmaeus Hinrichs & Jacobi, 1938 (basis of record)
Saccoglossus ruber Tattersall, 1905 (basis of record)
Spengelidae Willey, 1899 (basis of record)
Stereobalanus Spengel, 1901 (basis of record)
Stereobalanus canadensis (Spengel, 1893) (basis of record)