Georges Bank, Gulf of Maine, Cape Cod, Nova Scotia
Author: Research Institute of the Gulf of Maine
Publisher:
Published: 1978
Total Pages: 284
ISBN-13:
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Author: Research Institute of the Gulf of Maine
Publisher:
Published: 1978
Total Pages: 284
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DOWNLOAD EBOOKAuthor: États-Unis. State (Department). Geographer (Office)
Publisher:
Published: 1978
Total Pages: 252
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Published: 1999
Total Pages: 378
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Published: 2003
Total Pages: 572
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Publisher:
Published: 1970
Total Pages: 216
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Published: 1984
Total Pages: 44
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DOWNLOAD EBOOKAuthor: J. A. F. Garrick
Publisher:
Published: 1985
Total Pages: 428
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DOWNLOAD EBOOKFeatures of the valid nominal species of Aprionodon Gill (isodon Valenciennes) and Hypoprion Müller and Henle (hemiodon Valenciennes, macloti Müller and Henle, and signatus Poey), plus those of a previously unrecognized species here described as Carcharhinus leiodon n.sp., are examined and compared with those of Carcharhinus Blainville. Features studied include morphometrics, vertebral numbers and other vertebral characteristics, tooth numbers, color pattern, and some other aspects of external morphology. It is concluded that on these features C. Leiodon n.sp. is entirely encompassed within the parameters of Carcharhinus, and that, although A. isodon, H. hemiodon, H. macloti, and H. signatus each extend the range of diversity of Carcharhinus in one or more features, A. isodon is not uniquely different from Carcharhinus, and there is no common pattern of difference between the three species of Hypoprion and Carcharhinus. Accordingly, and because the nature of the teeth of Aprionodon and Hypoprion has been found insufficient to warrant generic distinction from Carcharhinus, the genera Aprionodon and Hypoprion are synonymised with Carcharhinus. A diagnosis and description are given for each of the above species. The descriptions include measurements, counts, and line illustrations that show the whole shark in lateral view, underside of head, nostril, and teeth. The geographic distribution is summarized, as are also the meager biological data available on number of embryos, size at birth, size at sexual maturity, and maximum size.
Author: David Alexander Ross
Publisher:
Published: 1970
Total Pages: 48
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DOWNLOAD EBOOKAuthor: International Court of Justice
Publisher:
Published: 1982
Total Pages: 556
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DOWNLOAD EBOOKAuthor: John Brooks Henderson
Publisher:
Published: 1923
Total Pages: 468
ISBN-13:
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