Acromegalomma lobiferum (Ehlers, 1887) comb. n.
Branchiomma lobiferum Ehlers 1887: 254-259, plate 53, figs 10-15 (figure 15 numbered as 16 in plate 53).
Type locality.
Key West, Florida, Gulf of Mexico (24.54°, -81.80°; estimated geolocation).