Salps of the Genus Pegea Savigny 1816 (Tunicata: Thaliacea)
Collection and observation of living salps in the genus Pegea Savigny, 1816, has enabled us to distinguish three species: Pegea bicaudata (Quoy and Gaimard, 1826), P. confoederata (Forskål, 1775), and P. socia (Bosc, 1802). The last of these has previously been considered a synonym of P. confoederata. Characters used to separate the species include body shape and color, test thickness, body muscle arrangement, and muscle fiber number. Differences in muscle fiber number among the species may be responsible for supposed latitudinal variations in fiber number, reported previously in the literature.
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Document Type: Research Article
Publication date: 1978-04-01
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