. The Cambridge natural history. Zoology. 640 TELEOSTEI chap. Eepresented in the Upper Eocene of Europe by several species of Atherina and by the extinct genus Bhamphognathus. Fam. 4. Mugilidae.—Maxillary excluded from the border of the upper jaw; dentition feeble or absent. Body covered with cycloid scales. Eibs attached to the extremity of strong parapo- physes. Pectoral fins inserted high up; ventral fins more or less approximated to the pectorals, with one spine and five soft rays ; pelvic bones suspended from the post-clavicles. Two well- separated dorsal fins, the anterior formed of a sm
. The Cambridge natural history. Zoology. 640 TELEOSTEI chap. Eepresented in the Upper Eocene of Europe by several species of Atherina and by the extinct genus Bhamphognathus. Fam. 4. Mugilidae.—Maxillary excluded from the border of the upper jaw; dentition feeble or absent. Body covered with cycloid scales. Eibs attached to the extremity of strong parapo- physes. Pectoral fins inserted high up; ventral fins more or less approximated to the pectorals, with one spine and five soft rays ; pelvic bones suspended from the post-clavicles. Two well- separated dorsal fins, the anterior formed of a small number of spines. Air-bladder present. These Fishes are closely i-elated to the preceding, of which they are a further specialisation, the pharyngeal bones having a complicated structure, much reducing the oesophageal opening, and the vertebrae being reduced in number (24 to 26 instead of 32 to 60). They feed on organic matter contained in mud, and inhabit the fresh waters and coasts of the temperate and tropical regions. The species number about 100. Principal genera: Mugil, Myxus, Anostomus, Joturus. Grey Mullets (Mugil) are represented on our coasts by three species, valued as food, one of which (M. capito) has a remarkably wide range, occurring from Scandinavia to the Cape of Good Hope. Eemains referred to the same genus occur in the Miocene and Oligocene. Fam. 5. Polynemidae.—Maxillary excluded from the border of the upper jaw; dentition feeble. Body covered with ctenoid. Fig. 391.—Shoulder-girdle and pelvis of Polynemus quadrifilis. cl, Clavicle; cor, coracoid ; pec, pectoral rays ; pel, pelvis ; 2^t, pterygials ; ptcl, post-clavicle ; pte, post-temporal ; sc, scapula ; scl, supra-clavicle ; ven, ventral Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harmer, S. F. (Sidney Frederic), S
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
