Bryopsis pennata

Bryopsis pennata J. V. Lamouroux var. pennata

Bryopsis pennata J. V. Lamouroux, 1809d:333, pl. 3, fig. 1 a,b; Egerod, 1952:370, fig.7; Dawson, 1957b:9;

Dawson, 1959a:6, 8, 12, 14; Dawson, 1961b:381; Dawson, 1961c:404, pl. 4: fig.4; Dawson, 1966a:7; Huerta-Müzquiz, 1978:339;González-González, 1993:443; Servière-Zaragoza et al., 1993:481; González-González et al., 1996:275; Pacheco-Ruíz and Zertuche-González, 1996a:432; Mendoza-González and Mateo-Cid, 1998:25, 27; Mendoza-González et al., 1999:61; León-Tejera and González-González, 2000:327; Abbott and Huisman, 2004:98, fig. 33B; López et al., 2004:10; Wysor, 2004:219; Pedroche et al., 2005:58; Mateo-Cid et al., 2006:48, 59; Dreckmann et al., 2006:154.

Bryopsis plumosa var. pennata (J. V. Lamouroux) Børgesen, 1911:147; Dawson, 1944:212; Rocha-Ramírez and Siqueiros-Beltrones, 1991:31; León-Tejera and González-González, 1993:497; González-González et al., 1996:127.

Algae of 1 or more erect filaments, up to 5 cm tall; main axes and branches with more or less opposite branchlets of similar length in upper portions and in one plane (giving a lanceolate to oblong featherlike appearance); axes sometimes only sparsely branched; arising from a rhizoidal holdfast. Main axis 250–400 µm in diameter; branchlets 40–75(–150) µm in diameter and up to 2.0 mm long.

HABITAT. On rocks, usually in shaded areas, crevices, and tide pools; mid intertidal to shallow subtidal.

DISTRIBUTION. Gulf of California: Puerto Peñasco to Cabeza Ballena. Pacific coast: Nayarit; Guerrero to Oaxaca; Costa Rica; El Salvador; Panama; Chile; Hawaiian Islands.

TYPE LOCALITY. Antilles, West Indies.