original description
(of ) Bryce, D. L. (1912). On three new species of Callidina. Journal of the Quekett Microscopical Club, (ser. 2) 11, 365-370, pl.12 [details] Available for editors 
additional source
Donner, J. (1965). Ordnung Bdelloidea (Rotatoria, Rädertiere). Bestimmungsbücher zur Bodenfauna Europas. Berlin. Akademie-Verlag, 297 [details] Available for editors 
From editor or global species database