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Abstract:

Until 1973, when Van Soest revised Thalia Blumenbach, 1798, this genus comprised only two species: Thalia democratica (Forsskål, 1775) and Thalia longicauda (Quoy & Gaimard, 1824). The former showed great variability, which led Van Soest to distinguish five species: T. democratica, T. orientalis, T. rhomboides, T. cicar, and T. sibogae. Some authors have ignored this revision considering the observed differences of infraspecific level. In the present work new material is studied analysing variables not previously considered, such as the development of blastogenic stolons in the solitary zooids and the location of the tunnel opening through which the bud blocks are liberated. These characters previously permitted a separation of closely related species in the genus Ihlea. The results show that stolon features, even though they permit a separation of solitary zooids of Thalia longicauda, do not discriminate all species of the "T. democratica group" since they are only useful in distinguishing T. democratica from T. sibogae. Other variables, mainly qualitative, do permit differentiation. The sympatric distribution of these taxa supports Van Soest's hypothesis as well.

Registro:

Documento: Artículo
Título:An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions
Autor:Daponte, M.C.; Castro, R.J.; Esnal, G.B.
Filiación:Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Facultad de Ingeniería, Universidad de Flores, 1406 Buenos Aires, Argentina
Palabras clave:Salpidae; Thalia; Thalia democratica group; Tunicata
Año:1996
Volumen:66
Número:3
Página de inicio:185
Página de fin:191
Título revista:Contributions to Zoology
Título revista abreviado:Contrib. Zool.
ISSN:00678546
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00678546_v66_n3_p185_Daponte

Referencias:

  • Berrill, N.J., Budding and development in Salpa (1950) J. Morph., 87, pp. 553-606
  • Borgelt, J.P., The subspecific differentiation of the salp Thalia democratica (Forskål, 1775) based on numerical taxonomical studies (1968) Trans. Roy. Soc. S. Afr., 38, pp. 45-64
  • Borgelt, J.P., A new subspecies of the salp Thalia democratica (Forskål, 1775) and a revised description of Thalia democratica var. orientalis Tokioka (1968) Trans. Roy. Soc. S. Afr., 38, pp. 65-76
  • Braconnot, J.C., Contribution à l'étude des stades successifs dans le cycle des Tuniciers pélagiques Salpides en Méditerranée (1973) Bull. Inst, Océanogr. Monaco, 71 (1424), pp. 1-27
  • Brien, P., Contribution à l'étude de l'embryogenèse et de la blastogenèse des Salpes (1928) Recueil Inst. Zool. Torley-Rousseau, 2, pp. 5-116
  • Brooks, W.K., On the development of Salpa (1876) Bull. Mus. Comp. Zool., 3 (14), pp. 291-348
  • Daponte, M.C., Esnal, G.B., Differences in embryological development in two closely related species Ihlea racovitzai and Ihlea magalhanica (Tunicata, Thaliacea) (1994) Polar Biol., 14, pp. 455-458
  • Daniel, W.W., (1978) Nonparametric Statistics, pp. 1-502. , Houghton Mifflin Co., Boston
  • Dauby, P., Godeaux, J., Application de l'analyse multidimensionelle aux espèces du genre Thalia (Tunicata: Thaliacea) (1987) Annls. Soc. R. Zool. Belg., 117, pp. 175-180
  • Esnal, G.B., Los sálpidos (Tunicata, Thaliacea) del Golfo de México y Mar Caribe (1979) Physis, 38 (94), pp. 59-66. , (Buenos Aires), Secc. A
  • Esnal, G.B., Daponte, M.C., Stolon development and some aspects of musculature in the characterization of Ihlea racovitzai (van Beneden, 1913) and Ihlea magalhanica (Apstein, 1894) (Tunicata, Thaliacea) (1990) Polar Biol., 10, pp. 265-268
  • Esnal, G.B., Daponte, M.C., Casareto, B.E., Castro, R.J., Iasis zonaria (Pallas, 1774) (Tunicata, Thaliacea) de las costas argentinas. Reproducción y distribución (1987) Physis, 45 (109), pp. 69-77. , (Buenos Aires), Secc. A
  • Esnal, G.B., Daponte, M.C., Simone, L.C., Pelagic tunicates (Appendicularia and Thaliacea) from the Tropical Western Pacific Ocean (1993) Physis, 48 (114), pp. 41-48. , (Buenos Aires), Secc
  • Foxton, P., The distribution and life-story of Salpa thompsoni Foxton with observations on a related species, Salpa gerlachei Foxton (1966) Disc. Rep., 34, pp. 1-116
  • Godeaux, J., Une salpe peu connue, Thalia longicauda Quoy et Gaimard (1967) Annls. Soc. Roy. Zool. Belg., 97 (2), pp. 91-102
  • Johnson, M.E., A quantitative study of the development of the Salpa chain in Salpa fusiformis-runcinata. Univ (1910) Calif. Publs. Zool., 6 (7), pp. 145-176
  • Van Soest, R.W.M., The genus Thalia Blumenbach, 1798 (Tunicata, Thaliacea), with descriptions of two new species (1973) Beaufortia, 20 (271), pp. 193-212
  • Van Soest, R.W.M., Observations on taxonomy and distribution of some salps (Tunicata, Thaliacea), with descriptions of three new species (1975) Beaufortia, 23 (302), pp. 105-129
  • Van Soest, R.W.M., Zoogeography and speciation in the Salpidae (Tunicata, Thaliacea) (1975) Beaufortia, 23 (307), pp. 181-215
  • Tokioka, T., Notes on salps and doliolums occurring on the Pacific coasts of Middle Japan (1937) Annot. Zool. Japon., 16 (3), pp. 219-235

Citas:

---------- APA ----------
Daponte, M.C., Castro, R.J. & Esnal, G.B. (1996) . An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions. Contributions to Zoology, 66(3), 185-191.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00678546_v66_n3_p185_Daponte [ ]
---------- CHICAGO ----------
Daponte, M.C., Castro, R.J., Esnal, G.B. "An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions" . Contributions to Zoology 66, no. 3 (1996) : 185-191.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00678546_v66_n3_p185_Daponte [ ]
---------- MLA ----------
Daponte, M.C., Castro, R.J., Esnal, G.B. "An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions" . Contributions to Zoology, vol. 66, no. 3, 1996, pp. 185-191.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00678546_v66_n3_p185_Daponte [ ]
---------- VANCOUVER ----------
Daponte, M.C., Castro, R.J., Esnal, G.B. An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions. Contrib. Zool. 1996;66(3):185-191.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00678546_v66_n3_p185_Daponte [ ]