Natural history of animals; . SEA URCHINS. 237. Fig. 466. — Mellita. Southeast coast of United States. number of curious littleorgans called pedicil-laricB. They look like astem ending in a knob,but the knob is com-posed of three pieces orblades, which open andshut tightly, thus form-ing a sort of organs are of usein keeping the shellclean. The number of kinds FiS- ^> ~ Rotula- Coast of Africa-of Sea Urchins is quite large, and they vary in sizefrom an inch to three or four inches in diameter, andhave spines from a quarter of an inch long to three orfour inches in length. Some
Natural history of animals; . SEA URCHINS. 237. Fig. 466. — Mellita. Southeast coast of United States. number of curious littleorgans called pedicil-laricB. They look like astem ending in a knob,but the knob is com-posed of three pieces orblades, which open andshut tightly, thus form-ing a sort of organs are of usein keeping the shellclean. The number of kinds FiS- ^> ~ Rotula- Coast of Africa-of Sea Urchins is quite large, and they vary in sizefrom an inch to three or four inches in diameter, andhave spines from a quarter of an inch long to three orfour inches in length. Some of them are capable ofmaking holes in hard substances, even in limestone andgranite.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
