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Tokioka, T.. |
I was strongly impressed by the striking resemblance between the ascidian genera Ciallusia Van Name, 1918 and Pterygascidia Sluiter, 1904 when in 1957 I examined some specimens of Ciallusia longa Van Name, 1918, collected from Philippine waters and deposited at the United States National Museum (Tokioka, 1967: 136). C. longa is closely related with Pterygascidia mirabilis Sluiter, 1904, collected from off Timor by the Siboga Expedition, in general appearance of the pedunculate body, situation of the branchial and atrial apertures, structure of the branchial siphon, arrangement of body muscles divided into parts, and in the essential structure of the branchial sac, alimentary canal and gonads. The former, however, seemed to differ distinctly from the latter... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.71. |
Ano: 1971 |
URL: http://www.repository.naturalis.nl/record/319257 |
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Tokioka, T.. |
Eleven samples of pelagic tunicates were found in the material collected during the Snellius Expedition 1929-30. In these, seven species, viz., two pyrosomas and five salpas, are included. In addition, a few old specimens of another species of Pyrosoma were found in the collection of the Leiden Museum. Thus, the following eight species are recorded in the present short paper. 1. Pyrosoma spinosum (Herdman) 2. Pyrosoma verticillatum cylindricum Metcalf & Hopkins 3. Pyrosoma atlanticum atlanticum (Peron) 4. Ritteriella picteti (Apstein) 5. Salpa fusiformis Cuvier 6. ? Salpa cylindrica Cuvier 7. Thetys vagina (Tilesius) 8. Pegea confoederata (Forskal) Most of the specimens are preserved in formalin and these, especially the salpas, are all in a poor... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.8. |
Ano: 1974 |
URL: http://www.repository.naturalis.nl/record/319265 |
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