Datoteka:Pedicellina cernua 001.png

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Sažetak

Opis
English: Pedicellina cernua (Pallas, 1774) from Guernsey, a British Crown dependent island in the English Channel. Entire colony ×27. The colony has three growing ends – a; 1–8 – individuals of colony; 1 and 8 are quite immature; 7 is still young, tentacles retracted; 2 is seen in longitudinal section; g – generative organ, and below it the ganglion; m – mouth; r – rectum; s – stomach; between g and r are three embryos in the brood-pouch; the tentacles are retracted; in 5 and 6 the tentacles are expanded; in 6 two embryos are seen within the circle of the tentacles, to the left of them is the rectum, and to the right the mouth; 3 is in the act of losing its calyx, and has already developed the beginning of a new polypide-bud; in 4 the primary calyx has been lost, and the new calyx is clearly marked off from the stalk.
Datum
Izvor Harmer S. F. Polyzoa. In: Harmer S. F., Shipley A. E. The Cambridge Natural History, vol. 2. – London, New York: Macmillan and Co, 1901. – P. 487, fig. 243. Reprint
Autor Sidney Frederic Harmer (1862–1950) – author of the chapter

Licenciranje

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.

Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

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prikazuje

Pedicellina cernua engleski

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Datum/vrijemeSmanjeni pregledDimenzijeKorisnikKomentar
trenutno00:19, 19 januar 2013Smanjeni pregled verzije na dan 00:19, 19 januar 20131.049 × 450 (190 KB)Mithrilwhite background
20:26, 24 februar 2012Smanjeni pregled verzije na dan 20:26, 24 februar 20121.036 × 399 (495 KB)JoJan

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