University Herbarium, UC Berkeley: Indian Ocean Catalogue

IOC entry for Caulacanthus ustulatus

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Caulacanthus Kützing

Caulacanthus ustulatus (Turner) Kützing

Fucus acicularis Wulfen var. ustulatus Turner, 1808–1809: 143, 144 (lectotype locality: Cádiz, Spain fide Searles, 1968: 46, pl. 10a).

Caulacanthus ustulatus (Turner) Kützing, 1843b: 395.—Hohenacker, 1862 [1852–1862]: no. 593.— G. Martens, 1868: 30, 90–91.— Børgesen, 1933b: 115–116.— Børgesen, 1935: 44.— Stephenson, Stephenson, & du Toit, 1937: 355, 361, 363, 373.— Eyre, Broekhuysen, & Crichton, 1938: 101.— Eyre & Stephenson, 1938: 30.— Stephenson, Stephenson, & Bright, 1938: 6, 18.— Stephenson, 1944: 299, 308, 313.— Børgesen, 1950b: 19–21, figs. 5, 6.— S. Dixit, 1966: 12.— Searles, 1968: 46–51, figs. 19–21, pl. 10a.— Gopalakrishnan, 1970: 64.— V. Krishnamurthy & H. Joshi, 1970: 21.— Jaasund, 1976: 89, fig. 180.— Jaasund, 1977c: 421.— Seagrief, 1977: 90.— Simons, 1977: 53, fig. 156.— Brown & Jarman, 1978: 1255, 1256, 1258, 1259.— Beckley & McLachlan, 1979: 179.— Lawson, 1980: 36.— Untawale, Dhargalkar, & Agadi, 1983: [33].— Kalugina-Gutnik, 1985: 97.— Bolton, 1986: 253.— Sartoni, 1986: 369, 371, fig. 8B.— Oyieke & Ruwa, 1987: 82, 84, 91, 92.— Seagrief, 1988: 56, fig. 5:10.— R. Anderson & Stegenga, 1989: 302.— Coppejans & Gallin, 1989: 52.— Bolton & Stegenga, 1990: 234, 237.— R. Anderson et al., 1991: 62.— Farrell, Critchley, & Aken, 1993: 153.— Branch et al., 1994: 332, pl. 158.1.— Farrell et al., 1994: 280.— Wynne, 1995: 277–280, figs. 13–15.

Taxonomic synonyms:

* Laurencia divaricata Suhr, 1840: 265 (type locality: "Kaffernküste'', South Africa).—Kützing, 1849: 858.

Caulacanthus divaricatus (Suhr) Papenfuss, 1943a: 86–87.—Stephenson, 1944: 350.— Stephenson, 1947: 302.— Seagrief, 1967: 72, pl. [28].— Simons, 1969: 257, fig. (s.n.).

Rhodomela ? spinella J. Hooker & Harvey, 1845b: 534–535 (syntype localities: New Zealand: east coast and Bay of Islands).

Caulacanthus spinellus (J. Hooker & Harvey) Kützing, 1849: 753.—Grunow, 1867: 79.— Reichardt, 1871: 25.— Hemsley, 1884: 281.

Caulacanthus indicus Weber-van Bosse, 1921: 222–223, fig. 67 [bis] (lectotype locality: Donggala, Paloe Bay, Celebes, Indonesia fide J. West & Calumpong, 1990: 182).—De Toni, 1924: 153.— Post, 1967b: table 2.— Post, 1968a: 92, 96, 105, 106, 108, 110, figs. 8, 9, 10, 10a, table II.— Post, 1968b: 255, 275, 295.— King & Puttock, 1994b: 184, 188.

Misapplied name (fide Papenfuss, 1943a: 86):

Rhodomela botryocarpa.—Delf & Michell, 1921: 114.

INDIAN OCEAN DISTRIBUTION: Australia, India, Indonesia (Sumatra and Timor), Kenya, Mauritius, St. Paul Island, Seychelles, Singapore, Somalia, South Africa, Sri Lanka, Tanzania.

Note: The conspecificity of Caulacanthus ustulatus, C. divaricatus, and C. spinellus was proposed by Searles (1968: 46–47). Caulacanthus indicus was added to the synonymy by J. West & Calumpong (1990: 182).

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