This name is a synonym of Echidnopsis ballyi (Marn.-Lap.) P.R.O.Bally.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 2609706) with original publication details: Cactus (Paris) 14(65): 186 1959.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:101860-1.
This name was in version 1 of The Plant List, record tro-2609706, and has not been changed.