Thalassaphorura cryptopyga (Denis, 1931)
Onychiurus cryptopygus Denis, 1931: 101
Records from Rio de Janeiro State: Pico da Tijuca (22º56’34.17”S; 43º17’10.97”W), without environmental reference (Cassagnau & Rapoport 1962) .
Occurrence in Brazil: until now, only recorded from Rio de Janeiro.