David Starr Jordan
Published: 2013-09
Total Pages: 44
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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. 1919 edition. Excerpt: ... triangular in outline, its depth at nape one and four-fifths in its length. Mouth long, oblique, the mandible apparently projecting, the maxillary oar-shaped, slightly emarginate behind; its length about four in head; no teeth preserved; bones of head much confused; a rather sharp bony ridge running horizontally back from the eye, and apparently a broader bony ridge on temporal region behind this; opercle large, rough, but without spines, the lower part with coarse, radiating ridges. Vertebrae very strong, deeper than long, with strong interneurals. Six neural spines visible under the spinous dorsal, its insertion is opposite third and fourth vertebrae, the spines stout (broken), the number not to be ascertained; the highest about half depth of head: some broken spines out of place about the head; imprint of a rather broad pectoral obscure. The character and make-up of the bones of the head suggest the genus Aspicottus, but this resemblance may be wholly elusive, and the fish may not belong to the Cottide. The spines on the head if present are all broken. Some moderate, thin scales, apparently cycloid, are scattered about, but they may not belong to this fish. It is named for Dr. Oliver Perry Hay, who has contributed much to our knowledge of fossil fishes. Family GOBIIDE. 49. Aboma antiqua Jordan and Gilbert, new species. (Plate XXIX, fig. 1) Two specimens of a small goby from the diatomaceous shales at Bairdstown, Dr. J. Z. Gilbert. These are two and three inches in length. Two others, about three and a half inches long, were obtained by Dr. Ralph Arnold in the same rock at Shorb, California. The largest of the specimens (No. II) from Bairdstown may be taken as the type of the species. The description is drawn from all. The figure is...