This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...incisor-like, usually confined to the jaws, sometimes on vomer; lower pharyngeals separate, with cardiform, rarely molar teeth; gill membranes somewhat connected, free from the isthmus; gill rakers very short and thick; branchiostegals 4 to 6; pseudobranchiae none; dorsal fin single, behind the middle of the body; ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...incisor-like, usually confined to the jaws, sometimes on vomer; lower pharyngeals separate, with cardiform, rarely molar teeth; gill membranes somewhat connected, free from the isthmus; gill rakers very short and thick; branchiostegals 4 to 6; pseudobranchiae none; dorsal fin single, behind the middle of the body; caudal fin not forked; ventral fins abdominal, rarely absent; air bladder, if present, simple. The species of this family are usually of small size, some are oviparous, others viviparous. In the oviparous forms, the males and females are more nearly alike in size and color, and the anal fin of both sexes is similar in form and position. In many of the viviparous species the anal fin of the male is placed well forward and modified into an intromittent organ, and the male is about half the length of the female. In other viviparous forms the anal fin of the male has the same position as that in the female, but differs from it in having the first five or six rays short and stiff, and separated from the rest of the fin by a shallow notch; the sexes differ in color, but are of about the same size. In some species the alimentary canal is about as long as the fish; in others it is several times as long. KEY TO THE GENERA OF PCECILIID. a. Intestinal canal comparatively short, little convoluted, usually less than one and one-half times the total length of the body (2 in Chapalichthys); teeth little movable; dentary bones firmly united; species chiefly carnivorous. b. A few of the anterior teeth in each jaw much Page enlarged, canine-like Cynodonichthys 101 bb. Anterior teeth in each jaw subequal, none ca nine-like, c. Outer series of teeth enlarged, pointed, or a few of the anterior ones compressed, incisor-like, none of them notched, bicuspid or tri-cuspid...
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Add this copy of The Fresh-Water Fishes of Mexico North of the Isthmus to cart. $47.75, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2018 by Palala Press.
Add this copy of The Fresh-Water Fishes of Mexico North of the Isthmus to cart. $63.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2015 by Palala Press.
