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Image from page 220 of "Discovery reports" (1962) | by Internet Archive Book Images
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Image from page 220 of "Discovery reports" (1962)

Title: Discovery reports

Identifier: discoveryreports30inst

Year: 1962 (1960s)

Authors: Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee

Subjects: Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands

Publisher: London ; New York : Cambridge University Press

Contributing Library: MBLWHOI Library

Digitizing Sponsor: MBLWHOI Library



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Text Appearing Before Image:

SYSTEMATIC ACCOUNT 177 The anterior border of the antennae has a prominent central indentation and there is a pair of eyes on the prostomium. The first pair of chaetigers is never present; the second pair reach to about three-quarters the length of the body. Hyaline glands may appear on the first parapodia in the dorsal part of the neuropodial pinnule (Text-fig. 8), but are always present from the third foot up to the end of the body; they are frequently pigmented but may be difficult to see. The chromophil glands appear first on the neuropodia of the third pair of parapodia and subsequently on all feet; they are not com- pact but consist of a series of ramifying tubules which are situated between the ventral and apical surfaces (Text-fig. 8). A tail is never present.


Text Appearing After Image:

Text-fig. 8. Tomopteris septentrionalis: parapodia of specimens from (a) St. 250, (b) St. 2017. Discussion. The diffuse chromophil gland in T. septentrionalis might cause it to be confused with both T. planktonis and T. elegans. T. planktonis however has a compact chromophil gland in the adult and it is only in young specimens that any similarity between the two exists; as noted above (p. 174) Monro's (1936) specimen of T. septentrionalis from St. 41 A, is T. planktonis. The presence of the first pair of chaetigers in T. elegans serves to separate it from T. septentrionalis. General distribution. Cosmopolitan at all explored depths (see pp. 228-231). Tomopteris ligulata Rosa, 1908 Original localities. Atlantic Ocean, 220 N., 350 W., 330 S., 300 W., Pacific Ocean, 310 S., 840 W. Tomopteris ligulata Rosa, 1908 a, p. 1. Tomopteris (Tomopteris) ligulata Rosa, 19086, pp. 302-4, pi. 12, figs. 18, 19. Tomopteris (Tomopteris) ligulata Malaquin and Carin, 1911, pp. 15-16. Tomopteris ligulata Ehlers, 1917, pp. 232-3 (in part). Tomopteris ligulata Malaquin and Carin, 1922, p. 22, p. 28, pp. 41-2, pi. 6, fig. 3, pi. 10, figs. 3-5. Tomopteris (Tomopteris) ligulata Fauvel, 1923, p. 224, fig. 84c Tomopteris (Tomopteris) ligulata Caroli, 1928a, pp. 4-5. Tomopteris (Tomopteris) ligulata Caroli, 19286, pp. 7-8, fig. 3. Tomopteris (Tomopteris) ligulata Caroli, 1933, p. 379. Tomopteris planktonis Monro, 1936, p. 121 (in part). Tomopteris ligulata Monro, 1939 a, p. 348. Tomopteris (Tomopteris) ligulata Stop-Bowitz, 1948, p. 52, fig. 38.



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