scabricauda Humbert & Saussure, 1870: 203 [Branchiostoma].
Rio-Janeiro. Unspecified series.
Saussure & Humbert (1872) gave a more detailed redescription, indicating that they had a single specimen. No specimens found in the MHNG. The holotype, labelled “leg. Tóth, Rio de Janeiro ” is in the NHMW (Inventory Number 1015, Acquisition Number 1866.I.350b).
Otostigmus scabricauda (Humbert & Saussure, 1869)