Stegolaria irregularis Totton, 1930
Material examined: BBB 2016: St. 18; St. 40. GARCÍA 2015: St. 4.
Distribution: Species distributed in the southwestern Atlantic Ocean, Argentina, from 38 to 57°S as Stegopoma irregularis (see Oliveira et al. 2016).
Remarks: A big immature colony was found.