Opinions from A. R. McCune 1986
- 'Lepidotes minor belongs to Lepidotes' according to L. Agassiz 1833
- 'Lepidotes minor is recombined as Semionotus minor'
- 'Semionotus belongs to Semionotidae'
- 'Semionotus altolepis belongs to Semionotus' according to Deecke 1889
- 'Semionotus altolepis is a nomen dubium'
- 'Semionotus bergeri belongs to Semionotus'
- 'Semionotus brodei belongs to Semionotus' according to Newton 1887
- 'Semionotus brodei is a nomen dubium'
- 'Semionotus dubius belongs to Semionotus' according to Bellotti 1857
- 'Semionotus dubius is a nomen dubium'
- 'Semionotus elongatus belongs to Semionotus' according to Fraas 1861
- 'Semionotus elongatus is an objective synonym of Semionotus bergeri'
- 'Semionotus esox belongs to Semionotus' according to Berger 1843
- 'Semionotus esox is a subjective synonym of Semionotus bergeri'
- 'Semionotus gibbus belongs to Semionotus' according to Seebach 1866
- 'Semionotus gibbus is a nomen nudum'
- 'Semionotus inermis belongs to Semionotus' according to Bellotti 1857
- 'Semionotus inermis is a nomen dubium'
- 'Semionotus inornatus is a nomen dubium'
- 'Semionotus kapffi belongs to Semionotus'
- 'Semionotus kapffi belongs to Semionotus' according to Fraas 1861
- 'Semionotus leptocephalus is a nomen dubium'
- 'Semionotus letticus belongs to Semionotus' according to Fraas 1861
- 'Semionotus letticus is recombined as Engycolobodus letticus'
- 'Semionotus metcalfi belongs to Semionotus' according to Swinnerton 1928
- 'Semionotus metcalfi is a nomen dubium'
- 'Semionotus nilssoni is a nomen dubium'
- 'Semionotus normanniae belongs to Semionotus' according to Larsonneur 1964
- 'Semionotus normanniae belongs to Semionotus'
- 'Semionotus serratus belongs to Semionotus' according to Fraas 1861
- 'Semionotus serratus is a nomen dubium'
- 'Semionotus spixi is a subjective synonym of Semionotus bergeri'
- 'Semionotus trotti belongs to Semionotus' according to Bellotti 1857
- 'Semionotus trotti is a nomen dubium'