I couldn't discover who first used it as an order, but I'm not an oligochaetologist, so I don't know all the literature. Probably the most likely to know is Barrie Jamieson who has been very interested in the higher ranks.
See his works at http://barriegmjamieson.com/
The actual word spelling 'Enchytraeida' was in relatively common use in the sense only of a family rank back in the 19th century. This would be of historic interest only, but I'd guess the first usage at order rank was not until well into the first half of the 20th century, if not later. Beddard didn't use it in his 1895 monograph. He had Enchytraeidae in a superfamily called Lumbriculides. Brinkhurst and Jamieson (1971) in 'Aquatic oligochaeta of the world' used suborder Tubificina, Super family Enchytraeoidea with one member, Family Enchytraeidae.
From: annelida-bounces from oat.bio.indiana.edu [mailto:annelida-bounces from oat.bio.indiana.edu] On Behalf Of Alessandro Prantoni
Sent: Sunday, 17 December 2017 12:55 a.m.
To: annelida from magpie.bio.indiana.edu
Subject: [Annelida] Authority for the order Enchytraeida
Does anyone knows the authority for the order Enchytraeida?
Thanks in advance,
Alessandro Lívio Prantoni
Laboratório de Bentos - CEM - UFPR
Av. Beira Mar s/n Balneário Pontal do Sul CEP 83515-000 Pontal do Paraná - Pr. - Brasil
+ 41 3511-8623 <tel:%2841%293511-8623>
aprantoni from gmail.com <mailto:aprantoni from gmail.com>
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