Dasya crispa Suhr, 1840: 279–280 (type locality: False Bay, Cape Province, South Africa).—Krauss, 1846: 212 (in part; see also Bostrychia tenella).
Heterosiphonia crispa (Suhr) Falkenberg, 1901: 642–643.—De Toni, 1903: 1226–1227.— Eyre, Broekhuysen, & Crichton, 1938: 93.— Stephenson, 1947: 305.— Papenfuss, 1968b: 274.— Bolton & Stegenga, 1987: 175, fig. 5a.— R. Anderson & Stegenga, 1989: 303, 305.— Bolton & Stegenga, 1990: 237.
Misapplied names:
Dasya dubia.—Kützing, 1864: 28, pl. 79: figs. c–e.
Dasya callithamnium.—Barton, 1893: 175 (`callithamnion').
INDIAN OCEAN DISTRIBUTION: South Africa.
Note: The misapplication of Dasya dubia is included on the authority of Falkenberg (l.c.), that of D. callithamnium on the authority of Papenfuss (l.c.).