. Text-fig. 10. Tomopteris ligulata: parapodium of specimen from St. 2028. the parapodia almost to the junction with the body wall (Text-fig. 10): this is a characteristic of the species. In preservative the pinnules frequently become bent concavely backwards, possibly because of the torsion exerted by their long line of contact with the parapodia. There is no tail. Discussion. Through the courtesy of Professor Stresemann and Dr Hartwich, I have been able to examine two specimens of T. ligulata Rosa, identified by Ehlers, and described by him in the Deutsche Siid-Polar Expedition's report, 191

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. Text-fig. 10. Tomopteris ligulata: parapodium of specimen from St. 2028. the parapodia almost to the junction with the body wall (Text-fig. 10): this is a characteristic of the species. In preservative the pinnules frequently become bent concavely backwards, possibly because of the torsion exerted by their long line of contact with the parapodia. There is no tail. Discussion. Through the courtesy of Professor Stresemann and Dr Hartwich, I have been able to examine two specimens of T. ligulata Rosa, identified by Ehlers, and described by him in the Deutsche Siid-Polar Expedition's report, 1917, pp. 232-3. The specimens are from the Zoology Museum, University of Berlin (Kat. no. 5857), locality, 630 42' S., 820 o' E., collected 17. iii. 1903. One specimen is very fragile, 4-5 mm. long, with seventeen pairs of parapodia, with the pinnules not continued close to the body wall, but rounded and typical of the T. planktonis condition shown in Text-fig. 6a-f, p. 173; the chromophil glands are ventral and the hyaline glands indistinct. The second specimen, not so fragile as the first, is 4-5 mm. long with sixteen pairs of parapodia. Again