Work found, with species-group names introduced therein:
Quinn, J. F., Jr. 1981b. The gastropods, Calliostoma orion Dall, 1889 (Trochidae) and Heliacus (Gyriscus) worsfoldi n. sp. (Architectonicidae), from the Bahama Islands. Nautilus 95 150-156. [Stated date: 10 Jul 1981.] Heliacus (Gyriscus) worsfoldi, see Heliacus worsfoldi Quinn, 1981