This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...whereas the stonecanal is quite studded with such spicules, interwoven with each other. The genital organs consist of a great many long, unbranched tubes, arranged round a long main stem; the latter and the lower part of the tubes are quite full of bihamate spicules, whereas the tubes are quite ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...whereas the stonecanal is quite studded with such spicules, interwoven with each other. The genital organs consist of a great many long, unbranched tubes, arranged round a long main stem; the latter and the lower part of the tubes are quite full of bihamate spicules, whereas the tubes are quite destitute of spicules. Many specimens of different sizes of this most beautiful sea-urchin were taken at Koh Kram, 20--30 fathoms; also some specimens at Koh Chuen, 30 fafhs., and between Koh Kahdat and Koh Kut, 8--10 fathoms, all on hard bottom (sand, shells, stones). A specimen of only 25 mm. in diameter is already quite typical, with both kinds of globiferous pedicellariae developed. One specimen is abnormal and deformed, one of the ambulacra reaching only halfway to the apical system. Several of the specimens are infested with a small parasitic Gastropod, probably an Eulimid. Further I observed on several of them a little crab, which devours the spines (probably the muscles only), pedicellariae and tube feet, quite cleaning the test; it mostly follows one area from the top downwards. Where it has been, one may find young stages of pedicellariae in enormous numbers, quite covering the test; also young spines may be found in such places. If the tube feet are regenerated, I cannot ascertain beyond doubt, but it seems so. It has not hitherto been doubted that Salm. bicolor and rarispina were two good species. Especially in Doderlein's most excellent work a full description is given of both of them, and the distinctive features are pointed out. S. rarispina is distinguished from S. bicolor durch die kleinen, sehr weit von einander entfernten Hauptwarzen der Apicalseite, durch die auffallend flache Unterseite und das kleine Buccalfeld, durch...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
