Ilanga biradiatula (Martens, 1902)

Solariella biradiatula Martens, 1902: 242 . Martens, 1904: 123, pl. 5, fig. 3. Thiele, 1904: 161, pl. 8[3], fig. 37. Type loc.: Valdivia St’n 243, off Dar-es-Salaam (06°39ʹS: 39°30ʹE), in approx. 400 m; three syntypes in ZMB, only one in good condition.

Solariella (Microgaza) meyeri Kilburn, 1973: 560, figs 1d, 2c, 3a, b, 4a. Type loc.: said to be off the Tugela River mouth (about 29°11ʹS) in 75 fathoms [137 m]; holotype in NMSA (A1/T1695).

Ilanga biradiatula — Herbert, 1987c: 299, figs 11–15. Williams et al., 2013: 8.

Distribution. Western Indian Ocean, from Tanzania and northern Madagascar to southern Transkei (off Stony Point); 137–680 m (living 350–524 m).