Summary: | Figure 5. Schematic drawings (not to scale) following Laubier et al. (1972–73), showing lateral (above) and dorsal (below) views of four species of Heterospio: Heterospio longissima Ehlers, 1874, Heterospio longissima Ehlers, 1874 sensu Hartman (1965), Heterospio catalinensis Hartman, 1944 and Heterospio sinica Wu and Chen, 1966. Arrows mark position of first elongated chaetiger: black, after original description; grey, new interpretation (in case of being different to former; see text for explanations). Chaetigers numbered below lateral view of each species. Published as part of Parapar, Julio, Aguirrezabalaga, Florencio & Moreira, Juan, 2014, First record of Longosomatidae (Annelida: Polychaeta) from Iceland with a worldwide review of diagnostic characters of the family, pp. 983-998 in Journal of Natural History 48 (17) on page 990, DOI:10.1080/00222933.2013.859316, http://zenodo.org/record/4006775
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