Iridaea cornea Kützing, 1867: 6, pl. 20 (type locality: Cape Agulhas, Cape Province, South Africa).—Schmitz, 1896a: 13–16.
Cyrtymenia cornea (Kützing) Schmitz in Schmitz & Hauptfleisch, 1897j: 511.—De Toni, 1905: 1583.— Mazza, 1914 [1905–1918]: 158–161.
Phyllymenia cornea (Kützing) Setchell & Gardner, 1936: 473.—Nunn & Parolis, 1969: 265.— Nunn & Parolis, 1970: 145.
Pachymenia cornea (Kützing) Chiang, 1970: 22–24, fig. 8.—Simons, 1977: 40, 46, figs. 110, 132.— Simons & Hewitt, 1977: 25, 35, figs. 30–34, 38.— Bolton, 1986: 253.— Seagrief, 1988: 54, fig. 5:9.— Branch et al., 1994: 322.
Taxonomic synonym:
* Pachymenia rugosa Holmes, 1894a: 340 (type locality: near mouth of Kowie River, Port Alfred, Cape Province, South Africa).—Holmes, 1896a: 88–89.
Misapplied names (fide Schmitz, 1896a: 13–14):
Iridaea carnosa.—Hohenacker, 1854 [1852–1862]: no. 175.— Hohenacker, 1860 [1852–1862]: no. 372 (in part; see also Pachymenia carnosa).
Pachymenia carnosa.—Barton, 1893: 139 (Cape Agulhas records, in part; see also Pachymenia carnosa).
INDIAN OCEAN DISTRIBUTION: South Africa.
Note: Pachymenia rugosa is included as a synonym on the authority of Schmitz (1896a: 13). Hohenacker (1860 [1852–1862]) distributed specimens of both P. carnosa and P. cornea under his no. 372 (in UC).