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Identifier: geologicalmagazi3118wood (find matches)
Title: Geological magazine
Year: 1884 (1880s)
Authors: Woodward, Henry, 1832-1921, ed
Subjects:
Publisher: London (etc.) Cambridge University Press
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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Text Appearing Before Image:
s in connexion with other parts of the skeleton. DESCEIPTION OF PLATE II. 1. Ctenacanthus costellatus, Traq., one fourth natural size. 2. Anterior dorsal spine, natural size. 3. Ornamentation of one of the anterior ridges on the same spine, x 8 diameters. 4. Detail of ridges more posteriorly situated, x 6 diameters. 5. Eidges still further behind and towards the point, x 6 diameters. 6. Tooth, X 4 diameters. 7. Portion of skin, with shagreen bodies, x 4 diameters. III.—Description of a New Species op Elonichthys from the Lower Carboniferous Eocks of Eskdale, Dumfriesshire. By E. H. TRAauAiB, M.D., F.E.S. THE labours of Mr. Jex in the Eskdale fish-beds have brought tolight another beautiful new fish, now in the British Museum.This is a Ganoid of the genus Elonichthjs, and though represented asyet only by a single specimen, this is fortunately a very perfect one.The length of the specimen is exactly 12 inches, but the tip of the Das natxuliche System der Elasmobranchier, pt. i. p. 58.
Text Appearing After Image:
Dr. R. H. Traquair—On a Neio Species of Elonichthys. 9 snout is not present. It is also slightly contorted or bent, so thatthe back is more convex or gibbous than would otherwise be thecase, while the ventral margin assumes a concave contoui-. Com-pression has also taken place in a somewhat oblique direction, sothat, the fish lying on its right side, the origin of the dorsal fin isslightly concealed by the scales of the left. The general contour of the fish is deeply fusiform, with a prettylarge head and powerful heterocercal tail. If we allow ^ inch forthe missing part of the snout, the length of the head would be con-tained 4^ times in the total. The head has the usual palaeoniscid structure, but is so crushedand otherwise badly preserved that little more can be said of it.Traces of fine striae are seen on the maxilla as well as on the man-dible opercular bones. The supra-clavicular element of the shouldergirdle shows the same kind of ridged sculpture so general in speciesof this

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作者 Woodward, Henry, 1832-1921, ed
授权
(二次使用本文件)
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Volume
InfoField
1884
Flickr tags
InfoField
  • bookid:geologicalmagazi3118wood
  • bookyear:1884
  • bookdecade:1880
  • bookcentury:1800
  • bookauthor:Woodward__Henry__1832_1921__ed
  • bookpublisher:London__etc___Cambridge_University_Press
  • bookcontributor:Harvard_University__Museum_of_Comparative_Zoology__Ernst_Mayr_Library
  • booksponsor:Harvard_University__Museum_of_Comparative_Zoology__Ernst_Mayr_Library
  • bookleafnumber:26
  • bookcollection:biodiversity
  • bookcollection:Harvard_University
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
2014年7月28日


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