30 DISCOVERY REPORTS 



5. S. thompsoni has its northern Umit of distribution at the subtropical convergence. It occurs in 

 subantarctic and antarctic waters and is circumpolar in distribution. 



6. S. gerlachei is an antarctic species restricted to high latitude waters of the Pacific sector and is 

 remarkable in not having a circumpolar distribution. 



REFERENCES 



Apstein, C, 1894a. Die Salpen der Berliner Zoologischen Sammlung. Archiv. Naturgesch. Jahrg. 60, Bd. i, pp. 41-54. 



18946. Die Thaliacen der Plankton-Expedition. Ergeb. der Plankton-Exp. der Humboldt- Stiftung. Bd. II. 



1901. ' Salpidae, Salpen'. Nordisches Plankton, vol. i. Kiel and Leipzig. 



1906. Salpen der deutschen Tiefsee Expedition. Wiss. Ergebn. Valdivia, vol. xii. Jena. 



1908. Die Salpen der deutschen Siidpolar Expedition. Dtsch. Siidpol. Exped. vol. ix. Berlin. 



Baker, A. de C, 1954. The circumpolar continuity of antarctic plankton species. Discovery Rep. vol. xxvii, pp. 201-18. 



1959- Distribution and Life History o/Euphausia triacantha Holt and Tattersall. Discovery Rep. vol. xxix, pp. 309-40. 



Beneden, E. Van and M. de Selys-Longchamps, 1913. Tuniciers. Caducichordata [Ascidiaces et Thaliaces). Expedition 



Belgica, 1897-99, Zool. Ill, pp. 3-122. 

 Bernard, M., 1958. Systematique et Distribution Saisonniere des Tuniciers Pelagiques d' Alger. Rapports et Proces-Verbaux 



des Reunions, vol. xiv (Nouvelle serie), pp. 21 1-3 1. 

 Berner, Leo., 1954. On the previously undescribed aggregate form of the Pelagic tunicate Ritteriella picteti (Apstein) 1904. 



Pacific Sci. vol. viii, no. 2, pp. 121-4. 

 Berrill, N. J., 1950. Budding and development in Salpa. J. Morph. 87, pp. 553-606, 16 figs. 

 BoMFORD, T. K., 1913. Some salps taken by R.I.M.S.S. 'Investigator' in the Bay of Bengal and Andaman Sea. Rec. Ind. 



Mus. vol. IX, Miscellanea, p. 243, part iv, no. 16. Calcutta. 

 Brooks, W. K., 1893. The genus Salpa. With a supplementary paper by Maynard M. Metcalf. Johns Hopkins Univ., Mem. II, 



pp. 1-396, pis. I-LVII. 

 Chamisso, A-VON, 1819. De Animalibus quisbusdam e classe Vermium Linnaeana. 1815-1818. Fasc. i. De Salpa, pp. 1-24, 



pi. I. Berolini. 

 CuviER, G., 1804. Memoire sur les Thalides et sur les Biphores. Aim. Mus. Hist. Nat., An. xii. Tome 4, pp. 360-82, pi. 68. 

 David, P. M., 1955. The distribution of Sagitta gazellae Ritter-Zahony. Discovery Rep. vol. xxvii, pp. 235-78. 



1958. The distribution of the Chaetognatha of the Southern Ocean. 'Discovery' Rep. vol. XXix, pp. 199-228. 



Deacon, G. E. R., 1937. The hydrology of the Southern Ocean. 'Discovery' Rep. vol. xv, pp. 1-124. 



Fagetti, E., 1959. Salpas Collectadas Frente A Las Castas Central Y Norte De Chile. Rev. Biol, mar., Valparaiso, vol. ix, 



nos. 1-3, pp. 201-8, pi. VII. 

 Farran, G. p., 1906. On the distribution of the Thaliacea and Pyrosoma in Irish waters. Fish. Ireland Sci. Invest. 1906. 



Pt. II, App. I. Dublin. 

 FoRSKAL, Petrus, 1775. Descriptiones Animalium Avium, Amphibiorum, Piscium, Insectorum, Vermium; quae in itinera 



orientali observavit, pp. 112-17 (Salpa). 

 Eraser, J. H., 1959. Plankton investigations from Aberdeen in i<)$'j. Ann. biol., Copenhague, vol. xiv (1957), pp. 29-30. 

 Hardy, A. C. and Gunther, E. R., 1935. The plankton of the South Georgia whaling grounds and adjacent waters, ig26-ig2y . 



Discovery Rep. vol. XI, pp. 1-456. 

 Herdman, W. a., 1888. Report on the Tunicata collected during the voyage of H.M.S. 'Challenger' during the years 1873-76. 



Part III. 'Challenger' Reports, Zoology, vol. xxvii, pp. 1-163. 



1910. Tunicata. Nat. Antarctic ('Discovery') Exped. 1901-4. Nat. Hist. vol. v, pp. 1-26. 



Ihle, J. E. W., 1910. Die Thaliacean der Siboga Expedition. Siboga Expeditie, Monograph 56d. Leiden. 



191 1. Ober die Nomenklatur der Salpen. Zool. Anz. vol. xxxviii, pp. 585-9. Leipzig. 



191 2. Desmomyaria. Das Tierreich, vol. xxxii. Berlin. 



1935- Desmomyaria. Handb. Zool. (Kuckenthal), Bd. V, 2. 



1937-58. Salpidae. Bronn's Klassen. Band 3, Suppl. Tunikaten, Abt. 2, Buch 2, Lief. 2, 3, 4; pp. 69-401. 



Isaacs, John D. and Lewis, W. Kidd, 1953. Isaacs-Kidd midwater trawl. Scripps Institution of Oceanography. S.I.O. Ref., 



53-3, pp. 1-18. 

 Kemp, S., Hardy, A. C. and Mackintosh, N. A., 1929. The 'Discovery' investigations, objects, equipment and methods. 



Discovery Rep. vol. i, pp. 141-232. 

 Krohn, a., 1846. Observations sur le generation et le diveloppement des Biphores (Salpa). Ann. Sci. nat., ser. 3 (Zool.), vol. vi, 



pp. 110-31. 

 Mackintosh, N. A., 1934 Distribution of the macroplankton in the Atlantic sector of the Antarctic. Discovery Rep. vol. ix, 



pp. 65-160. 



