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. 1911 edition. Excerpt: ...are slightly increased in number and the epiotics are broadly in contact within the cranium. The character of the union of the epiotics within the cranial cavity has not the value in the Carangidae that it has in the Scombridae. In the Carangidae the character seems to be in a transitional stage, and ...
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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. 1911 edition. Excerpt: ...are slightly increased in number and the epiotics are broadly in contact within the cranium. The character of the union of the epiotics within the cranial cavity has not the value in the Carangidae that it has in the Scombridae. In the Carangidae the character seems to be in a transitional stage, and its stability has been lost in changing from the broadly united epiotics of the Scombridae to the separated ones in the Percoid fishes. In the Percoid fishes (these need further study for this character; ten forms were examined) the epiotics are either separated by a generous area of cartilage below the supraoccipital, which extends downward at least half way between them, or the supraoccipital almost entirely separates them, as in the examples of the Carangoids where the epiotics are separated to the greatest extent. In two closely related Carangoids the condition of the epiotics may show considerable variation, so not much reliance can be placed upon them. In Oligoplites and Scomberoides, however, where the epiotics are in close and broad contact and the supraoccipital sends no entering wedge between them, the character no doubt has some value in showing Scombroid affinities. MUTUAL RELATIONSHIP. The family Carangidae is a much more compact group than the Scombridae. The gaps between the genera are much smaller, and though the osteological characters, like the form of the body, differs much in the extremes of variation, there are no sudden or complete changes. Consequently the genera do not so readily group themselves into subfamilies as do the genera of the Scombridoe. Though the groups here indicated are not very definite, they may show at least relationship. The subfamily Scombroidinae contains the genera Oligoplites and Scomberoides. It...
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Add this copy of Osteology of Certain Scombroid Fishes Volume 5 to cart. $22.54, new condition, Sold by Prominent Trading Company rated 4.0 out of 5 stars, ships from Hereford, HEREFORDSHIRE, UNITED KINGDOM, published 2012 by RareBooksClub. com.
