A Guide for the Dissection of the Dogfish (Squalus Acanthias)
A Guide for the Dissection of the Dogfish (Squalus Acanthias)

A Guide for the Dissection of the Dogfish (Squalus Acanthias)

A Guide for the Dissection of the Dogfish (Squalus Acanthias)The small sharks which abound along the coasts...
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SKU: gb-59524-ebook
Product Type: Books
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Author: Griffin, Lawrence Edmonds,1874-1949
Format: eBook
Language: English
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A Guide for the Dissection of the Dogfish (Squalus Acanthias)

A Guide for the Dissection of the Dogfish (Squalus Acanthias)

$17.19 $8.59
A Guide for the Dissection of the Dogfish (Squalus Acanthias)

A Guide for the Dissection of the Dogfish (Squalus Acanthias)

$17.19 $8.59
Author: Griffin, Lawrence Edmonds,1874-1949
Format: eBook
Language: English
Description

A Guide for the Dissection of the Dogfish (Squalus Acanthias)

The small sharks which abound along the coasts of the United States are commonly called dogfish by fishermen and others. The dogfish of inland waters belongs to an entirely different group. Two species of sharks are caught in numbers and used in laboratory work, the spiny dogfish (Squalus acanthias) and the smooth dogfish (Eugaleus galeus). The first is easily distinguished by the sharp spine in front of each dorsal fin. Squalus acanthias is often referred to under the synonym Acanthias vulgaris, while Eugaleus galeus is more frequently named either Mustelus canis or Galeus canis. The histories of these names and systematic descriptions of the species are contained in Samuel Garmans Monograph on the Elasmobranchs. Several sizes of dogfish are furnished by dealers. We consider it best to purchase large, fully developed specimens. The small specimens may be a little more convenient to handle, but the large ones have the important advantage of being sexually mature, while blood vessels and nerves are dissected better in large than in small specimens. Also, a number of structures are very different in mature animals from their condition in young ones. Dealers should be requested to furnish fish with fins and tails complete instead of trimmed. It is an advantage to issue to the class equal numbers of both sexes. ......Buy Now (To Read More)

Product details

Ebook Number: 59524
Author: Griffin, Lawrence Edmonds
Release Date: May 16, 2019
Format: eBook
Language: English

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