Mountains of millipedes. The family Odontopygidae in the Eastern Arc Mountains of Tanzania (Diplopoda, Spirostreptida) Author Enghoff, Henrik FB09A817-000D-43C3-BCC4-2BC1E5373635 Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK- 2100 Copenhagen Ø, Denmark. henghoff@snm.ku.dk text European Journal of Taxonomy 2022 2022-03-14 803 1 136 http://dx.doi.org/10.5852/ejt.2022.803.1691 journal article 20167 10.5852/ejt.2022.803.1691 af09c8e1-b481-4de0-b9d0-83ba26bf9876 2118-9773 6359066 8B66C8AE-F00A-42F6-9641-26B0ECC49F78 Genus Aquattuor Frederiksen, 2013 Type species Aquattuor denticulatus Frederiksen, 2013 ( Tanzania ) , by original designation. Other included species Nine ( Enghoff 2020 ). Diagnosis Differs from all other genera of Odontopygidae by the large, rectangular, detachable limbus flaps ( Frederiksen 2013b ; Enghoff & Frederiksen 2015 ; Enghoff 2020 ). Remarks Eight of the ten species in the genus are Eastern Arc endemics. Aquattuor fasciatus ( Attems, 1896 ) and A. claudiahempae Enghoff & Frederiksen, 2015 have been found at various Tanzanian localities outside the Eastern Arc, and may by synonymous ( Enghoff 2020 ). In the diagnosis of A. fasciatus Enghoff (2020) stated: “Shares a short (as broad as long, or slightly longer) gonopodal palette with A. claudiahempae , A. fasciatus , A. stereosathe , A. submajor and A. udzungwensis . ” This, of course makes no sense – it should have been “Shares a short (as broad as long, or slightly longer) gonopodal palette with A. claudiahempae , A. denticulatus , A. stereosathe , A. submajor and A. udzungwensis . ” I am grateful to Carlos Martínez for having spotted this.