Echinoderms of Connecticut (1912) Echinoderms of Connecticut echinodermsofcon00coew Year: 1912 No. 19.] ECHINODERMS OF CONNECTICUT. 105 likewise develops into a long-armed pluteus, and this by a com- plicated metamorphosis gives rise to the bizarre creature shown in Fig. 19, which actually represents the young urchin, although it FIG. 19. Mellita pcntapora. Young urchin shortly after the metamorphosis from the free-swimming pluteus. The pentagonal area in the center represents the mouth, in the angles of which are the five teeth. The spines and tube-feet are at this stage of enor- mous size
Echinoderms of Connecticut (1912) Echinoderms of Connecticut echinodermsofcon00coew Year: 1912 No. 19.] ECHINODERMS OF CONNECTICUT. 105 likewise develops into a long-armed pluteus, and this by a com- plicated metamorphosis gives rise to the bizarre creature shown in Fig. 19, which actually represents the young urchin, although it FIG. 19. Mellita pcntapora. Young urchin shortly after the metamorphosis from the free-swimming pluteus. The pentagonal area in the center represents the mouth, in the angles of which are the five teeth. The spines and tube-feet are at this stage of enor- mous size relative to the size of the body. (After Grave.) differs widely in appearance from the adult. The oval body is provided with a small number of spines and tube-feet of relatively
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