First lesson in zoology : adapted for use in schools . al bony fishes. Orders of Bony Fishes. Order 1. Body long; ventral finseither abdominal or .Opwi^oro*. Notacanthus. Order 2. Body long, snake-like;no ventral fins ^Apodes. Bel. —v^ Order 3. Five pairs of ^Us; mouthenormous; no fins Lyomeri. Eurypharjoix. N.^- Order 4. Body broad; lips withbarbels IfematognatM. Catfish, Pouts. Order 5. Body more or less ob-long (in African rivers) Scyphophon. Mormyi-us. TSS BOJff^r PISBES. 157 Order 6. Body usually com-pressed; all the bones and flns well developed Teleocephali. Salmon, Perch, Cod
First lesson in zoology : adapted for use in schools . al bony fishes. Orders of Bony Fishes. Order 1. Body long; ventral finseither abdominal or .Opwi^oro*. Notacanthus. Order 2. Body long, snake-like;no ventral fins ^Apodes. Bel. —v^ Order 3. Five pairs of ^Us; mouthenormous; no fins Lyomeri. Eurypharjoix. N.^- Order 4. Body broad; lips withbarbels IfematognatM. Catfish, Pouts. Order 5. Body more or less ob-long (in African rivers) Scyphophon. Mormyi-us. TSS BOJff^r PISBES. 157 Order 6. Body usually com-pressed; all the bones and flns well developed Teleocephali. Salmon, Perch, Cod. Order 7. Head and mouth very large; pectoral fins supported by slender bones Pediculati. Lophius, Angler. Order 8. Gills tufted; body long and slender Lophobromehii. Sea-horse. ^^ Order 9. Bones of upper and lower jaw united; often rounded and spiny PledognatM. Tetrodon, Sunflsh. The Eels—The common eel (Anguilla acutirostris, ) occurs on both sides of the Atlantic, on the IforthAmerican coast as far south as Cape Hatteras, and in inland. Fio. 160.—Common Eel, Anguilla acutirostris. riyers and lakes. The males are extremely rare, only fourhaying been found in this country. It is probable that theeel descends rivers in October and November, spawning inthe autumn and early winter at the mouths of rivers, and inharbors and estuaries in shallow water. By the end of thespring the young eels are two or three inches long, and thenascend rivers and streams. They grow about an inch amonth, and the females do not spawn at least before thesecond year, , when .about twenty inches long. estimates that the ovary of an eel weighing sixpounds when in spawn contains upwards of 9,000,000 The Pelican Fish.—^A very strange fish of unknown af- 158 FIRST LESSONS IN ZOOr^OGT. finities, but supposed to be a degraded eel, is the Euryphar-ynx (Pig. 161) dredged in the Mediterranean Sea. It is .437metre (18 inches) long, with an enormous mouth; it iswithout fins, and it dif
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1894
