. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Fish Study 173 rounded nose and gently swelling and tapering sides; it is widest at the eyes and this is a canny arrangement, for these great eyes turn alertly in every direction; and thus placed they are able to discern the enemy or the dinner coming from any quarter. The dorsal fin is a most miUtant looking organ. It consists of ten spines, the hind one closely joined to the hind dorsal fin, which is sup- ported by the soft rays. The three front spines rise successively, one above a
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Fish Study 173 rounded nose and gently swelling and tapering sides; it is widest at the eyes and this is a canny arrangement, for these great eyes turn alertly in every direction; and thus placed they are able to discern the enemy or the dinner coming from any quarter. The dorsal fin is a most miUtant looking organ. It consists of ten spines, the hind one closely joined to the hind dorsal fin, which is sup- ported by the soft rays. The three front spines rise successively, one above another and all are united by the membrane, the upper edge of which is deeply toothed. The hind dorsal fin is gracefully rounded and the front and hind fin wo A independently of each other, the latter often winnowing the water when the former is laid flat. The tail is strong and has a notch in the end; the anal fin has three spines on its front edge and. The pumpkin seed, the most common sunfish. ten soft rays. Each ventral fin also has a spine at the front edge and is placed below and slightly behind the pectorals. The pectoral fins, I have often thought, were the most exquisite and gauzelike in texture of any fins I have ever seen; they are kept almost constantly in motion and move in such graceful flowing undulations that it is a joy to look at them. The eye of the sunfish is very large and quite prominent; the large black pupil is surrounded by an iris that has shining lavender and bronze in it, but is more or less clouded above; the young ones have a pale silver iris. The eyes move in every direction and are eager and alert in their expression. The mouth is at the front of the body but it opens upward. The gill opening is prolonged backward at the upper comer, making an earlike flap; this, of course, has nothing to do with the fish's ears, but it is highly ornamental as it is greenish-black in color, bordered by iridescent, pale green, with a brilliant orange spot on its hi
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